diff --git a/src/computer.h b/src/computer.h
index a0239a9..fceed70 100644
--- a/src/computer.h
+++ b/src/computer.h
@@ -27,6 +27,7 @@
 // #define MUT
 
 #define KB_BUFFER_LENGHT 10
+#define MAX_PATH_LENGTH 256
 
 extern char salir;
 
@@ -175,9 +176,9 @@ struct computer {
 	FILE *tap_file;
 	unsigned char tape_fast_load; // 0 normal load; 1 fast load
 	unsigned char rewind_on_reset;
-	unsigned char current_tap[2049];
-	unsigned char last_selected_file[2049];
-	unsigned char last_selected_poke_file[2049];
+	unsigned char current_tap[MAX_PATH_LENGTH];
+	unsigned char last_selected_file[MAX_PATH_LENGTH];
+	unsigned char last_selected_poke_file[MAX_PATH_LENGTH];
 
 	unsigned char tape_current_bit;
 	unsigned int tape_block_level;
@@ -194,7 +195,7 @@ struct computer {
 
 	// Microdrive global variables
 	FILE *mdr_file;                  // Current microdrive file
-	unsigned char mdr_current_mdr[2049]; // current path and name for microdrive file
+	unsigned char mdr_current_mdr[MAX_PATH_LENGTH]; // current path and name for microdrive file
 	unsigned char mdr_active;	// 0: not installed; 1: installed
 	unsigned char mdr_paged;	// 0: not pagined; 1: pagined
 	unsigned int mdr_tapehead; // current position in the tape
@@ -251,7 +252,7 @@ struct computer {
 	unsigned char ftp_enable;
 	unsigned char FTPUser[32]; 
 	unsigned char FTPPwd[32];
-	unsigned char FTPPath[512]; 
+	unsigned char FTPPath[MAX_PATH_LENGTH]; 
 	unsigned char FTPIp[64];
 	unsigned char FTPPassive;
 	unsigned short FTPPort;
diff --git a/src/emulator.c b/src/emulator.c
index a023aa9..4cad70a 100644
--- a/src/emulator.c
+++ b/src/emulator.c
@@ -68,17 +68,17 @@ struct computer ordenador;
 SDL_Surface *screen;
 char salir,sound_aborted;
 unsigned int *sound[NUM_SNDBUF];
-char path_snaps[2049];
-char path_taps[2049];
-char path_mdrs[2049];
-char path_scr1[2049];
-char path_scr2[2049];
-char path_confs[2049];
-char path_tmp[2049];
-char load_path_snaps[2049];
-char load_path_taps[2049];
-char load_path_scr1[2049];
-char load_path_poke[2049];
+char path_snaps[MAX_PATH_LENGTH];
+char path_taps[MAX_PATH_LENGTH];
+char path_mdrs[MAX_PATH_LENGTH];
+char path_scr1[MAX_PATH_LENGTH];
+char path_scr2[MAX_PATH_LENGTH];
+char path_confs[MAX_PATH_LENGTH];
+char path_tmp[MAX_PATH_LENGTH];
+char load_path_snaps[MAX_PATH_LENGTH];
+char load_path_taps[MAX_PATH_LENGTH];
+char load_path_scr1[MAX_PATH_LENGTH];
+char load_path_poke[MAX_PATH_LENGTH];
 
 unsigned int colors[80];
 unsigned int jump_frames,curr_frames;
@@ -263,7 +263,7 @@ int remove_dir(char *dir)
 	struct stat st;
 
     dp = opendir (dir);
-	char str[2049];
+	char str[MAX_PATH_LENGTH];
 	
     if (dp != NULL) 
 		{
@@ -765,7 +765,7 @@ int save_config_game(struct computer *object, char *filename, int overwrite) {
 
 void load_config_network(struct computer *object) {
 	
-	char line[1024],carac,done;
+	char line[256],carac,done;
 	int pos;
 	FILE *fconfig;
 	unsigned char smb_enable=0, ftp_enable=0, FTPPassive=0;
@@ -881,8 +881,8 @@ fclose(fconfig);
 
 int load_config(struct computer *object, char *filename) {
 	
-	char config_path[1024];
-	char line[1024],carac,done;
+	char config_path[MAX_PATH_LENGTH];
+	char line[256],carac,done;
 	int pos, key_sdl=0;
 	FILE *fconfig;
 	unsigned char volume=255,mode128k=255,issue=255,ntsc=255, joystick1=255,joystick2=255,ay_emul=255,mdr_active=255,
@@ -1121,7 +1121,7 @@ int load_config(struct computer *object, char *filename) {
 int main(int argc,char *argv[]) {
 
 	int bucle,tstados,tstados_screen, argumento,fullscreen,dblbuffer,hwsurface,length;
-	char gamefile[4096],config_path[1024] ;
+	char gamefile[MAX_PATH_LENGTH],config_path[MAX_PATH_LENGTH] ;
 	
 	word PC=0;
 	
diff --git a/src/emulator.h b/src/emulator.h
index c58c00a..52e3199 100644
--- a/src/emulator.h
+++ b/src/emulator.h
@@ -25,6 +25,7 @@
 #define emulator_h
 
 #define NUM_SNDBUF 2
+#define MAX_PATH_LENGTH 256
 
 extern char debug_var;
 
@@ -32,17 +33,17 @@ extern SDL_Surface *screen;
 extern Z80FREE procesador;
 extern struct computer ordenador;
 extern unsigned int *sound[NUM_SNDBUF];
-extern char path_snaps[2049];
-extern char path_taps[2049];
-extern char path_mdrs[2049];
-extern char path_scr1[2049];
-extern char path_scr2[2049];
-extern char path_confs[2049];
-extern char path_tmp[2049];
-extern char load_path_snaps[2049];
-extern char load_path_taps[2049];
-extern char load_path_scr1[2049];
-extern char load_path_poke[2049];
+extern char path_snaps[MAX_PATH_LENGTH];
+extern char path_taps[MAX_PATH_LENGTH];
+extern char path_mdrs[MAX_PATH_LENGTH];
+extern char path_scr1[MAX_PATH_LENGTH];
+extern char path_scr2[MAX_PATH_LENGTH];
+extern char path_confs[MAX_PATH_LENGTH];
+extern char path_tmp[MAX_PATH_LENGTH];
+extern char load_path_snaps[MAX_PATH_LENGTH];
+extern char load_path_taps[MAX_PATH_LENGTH];
+extern char load_path_scr1[MAX_PATH_LENGTH];
+extern char load_path_poke[MAX_PATH_LENGTH];
 
 extern unsigned int colors[80];
 extern unsigned int jump_frames,curr_frames;
diff --git a/src/gui_sdl.c b/src/gui_sdl.c
index bc404fb..061533f 100644
--- a/src/gui_sdl.c
+++ b/src/gui_sdl.c
@@ -204,7 +204,7 @@ void maybe_load_conf(const char *filename)
 {
 	const char *dir = path_confs;
 	char *ptr;
-	char db[256];
+	char db[MAX_PATH_LENGTH];
 	char fb[81];
 	
 	if (filename==NULL) return;	
@@ -218,7 +218,7 @@ void maybe_load_conf(const char *filename)
 	ptr = strrchr (fb, '.');
 		if (ptr) *ptr = 0;	
 
-	snprintf(db, 255, "%s/%s.conf", dir, fb);
+	snprintf(db, MAX_PATH_LENGTH-1, "%s/%s.conf", dir, fb);
 	if (!load_config(&ordenador,db)) msgInfo("Configurations loaded",2000,NULL)	;
 	
 }
@@ -304,7 +304,7 @@ void create_tapfile_sdl() {
 
 	unsigned char *videomem;
 	int ancho,retorno;
-	unsigned char nombre2[1024];
+	unsigned char nombre2[MAX_PATH_LENGTH];
 
 	videomem=screen->pixels;
 	ancho=screen->w;
@@ -851,7 +851,7 @@ void create_mdrfile_sdl() {
 
 	unsigned char *videomem;
 	int ancho,retorno,bucle,retval;
-	unsigned char nombre2[1024];
+	unsigned char nombre2[MAX_PATH_LENGTH];
 
 	videomem=screen->pixels;
 	ancho=screen->w;
@@ -1043,22 +1043,13 @@ static int save_scr(int i)
 	const char *tape = ordenador.last_selected_file;
 	char *ptr;
 	FILE *fichero;
-	char db[256];
+	char db[MAX_PATH_LENGTH];
 	char fb[81];
-	int retorno,retval, length, retorno2;
-	char path_scr[2049];
+	int retorno,retval, retorno2;
 	retorno2=0; //Stay in menu as default
 	
-	strcpy(path_scr,getenv("HOME"));
-	length=strlen(path_scr);
-	if ((length>0)&&(path_scr[length-1]!='/'))
-		strcat(path_scr,"/");
-	
-	//Save only on SD card
-	if (i==1) strcat(path_scr,"scr"); else
-	 if (i==2) strcat(path_scr,"scr2"); else return 0;
-	 
-	dir = path_scr; 
+	if (i==1) dir=path_scr1; else
+	 if (i==2) dir=path_scr2; else return 0;
 	
 	// Name (for saves) - TO CHECK
 	if (tape && strrchr(tape, '/'))
@@ -1072,7 +1063,7 @@ static int save_scr(int i)
 					
 	
 	// Save SCR file		
-	snprintf(db, 255, "%s/%s.scr", dir, fb);
+	snprintf(db, MAX_PATH_LENGTH-1, "%s/%s.scr", dir, fb);
 	
 		
 	fichero=fopen(db,"r");
@@ -1493,7 +1484,7 @@ switch (which)
 static int tools()
 {
 	int opt , retorno;
-	int submenus[4];
+	int submenus[4], old_port;
 
 	memset(submenus, 0, sizeof(submenus));
 
@@ -1504,12 +1495,14 @@ static int tools()
 	submenus[2] = !ordenador.vk_auto;
 	submenus[3] = !ordenador.vk_rumble;
 	
+	old_port=ordenador.port;
+	
 	opt = menu_select_title("Tools menu",
 			tools_messages, submenus);
 	if (opt < 0)
 		return 0;
 		
-	set_port(submenus[1]);
+	if (old_port!= submenus[1]) set_port(submenus[1]);
 	ordenador.vk_auto = !submenus[2];
 	ordenador.vk_rumble = !submenus[3];
 	
@@ -1563,7 +1556,7 @@ static int save_load_snapshot(int which)
 	char *dir_load = load_path_snaps;
 	const char *tape = ordenador.last_selected_file;
 	char *ptr;
-	char db[256];
+	char db[MAX_PATH_LENGTH];
 	char fb[81];
 	int retorno, retorno2;
 	
@@ -1617,7 +1610,7 @@ static int save_load_snapshot(int which)
 		free((void*)filename);
 	} break;
 	case 1: // Save snapshot file
-		snprintf(db, 255, "%s/%s.z80", dir, fb);
+		snprintf(db, MAX_PATH_LENGTH-1, "%s/%s.z80", dir, fb);
 		
 		retorno=save_z80(db,0);
 		switch(retorno) 
@@ -1651,7 +1644,7 @@ static int save_load_game_configurations(int which)
 	char *dir = path_confs;
 	const char *tape = ordenador.last_selected_file;
 	char *ptr;
-	char db[256];
+	char db[MAX_PATH_LENGTH];
 	char fb[81];
 	int retorno, retorno2;
 	
@@ -1695,7 +1688,7 @@ static int save_load_game_configurations(int which)
 		
 		if (ptr) *ptr = 0;	
 	
-		snprintf(db, 255, "%s/%s.conf", dir, fb);
+		snprintf(db, MAX_PATH_LENGTH-1, "%s/%s.conf", dir, fb);
 	
 		retorno=save_config_game(&ordenador,db,0);
 		
@@ -1728,7 +1721,7 @@ static void save_load_general_configurations(int which)
 
 	int retorno;
 	unsigned char old_bw,old_mode;
-	char config_path[1024];
+	char config_path[MAX_PATH_LENGTH];
 	int length;
 	FILE *fconfig; 
 	
diff --git a/src/menu_sdl.c b/src/menu_sdl.c
index 2164904..0355551 100644
--- a/src/menu_sdl.c
+++ b/src/menu_sdl.c
@@ -64,7 +64,7 @@ typedef struct
 
 typedef struct
 {
-	char title[256];
+	char title[MAX_PATH_LENGTH];
 	const char **pp_msgs;
 	TTF_Font  *p_font;
 	int        x1,y1;
@@ -294,7 +294,7 @@ static const char **get_file_list_zip(const char *path)
 
 	for (cur=2;cur<gi.number_entry+2;cur++)
     {
-        char filename_inzip[1024];
+        char filename_inzip[MAX_PATH_LENGTH];
         unz_file_info file_info;
    
         err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
@@ -615,8 +615,8 @@ static void menu_draw(SDL_Surface *screen, menu_t *p_menu, int sel, int font_siz
 	SDL_Rect r;
 	int entries_visible = (p_menu->y2 - p_menu->y1-5) / line_height - 1;
 	const char *selected_file = NULL;
-	char filename[2049];
-	char name[512];
+	char filename[MAX_PATH_LENGTH];
+	char name[MAX_PATH_LENGTH];
 	char *ptr;
 	int i, y, length, max_string;
 	
@@ -1060,7 +1060,7 @@ uint32_t menu_wait_key_press()
 	return keys;
 }
 
-extern char curdir[256];
+extern char curdir[MAX_PATH_LENGTH];
 
 static int menu_select_internal(SDL_Surface *screen,
 		menu_t *p_menu, int *p_submenus, int sel,
diff --git a/src/menus.c b/src/menus.c
index a97a8c6..a3a9c98 100644
--- a/src/menus.c
+++ b/src/menus.c
@@ -739,7 +739,7 @@ void create_tapfile() {
 
 	unsigned char *videomem;
 	int ancho,retorno;
-	unsigned char nombre2[1024];
+	unsigned char nombre2[MAX_PATH_LENGTH];
 
 	videomem=screen->pixels;
 	ancho=screen->w;
@@ -923,7 +923,7 @@ void create_mdrfile() {
 
 	unsigned char *videomem;
 	int ancho,retorno,bucle,retval;
-	unsigned char nombre2[1024];
+	unsigned char nombre2[MAX_PATH_LENGTH];
 
 	videomem=screen->pixels;
 	ancho=screen->w;
@@ -987,7 +987,7 @@ void create_scrfile() {
 
 	unsigned char *videomem;
 	int ancho,retorno,retval;
-	unsigned char nombre2[1024];
+	unsigned char nombre2[MAX_PATH_LENGTH];
 	FILE *fichero;
 	char *name;
 
@@ -1485,7 +1485,7 @@ void save_z80file() {
 
 	unsigned char *videomem;
 	int ancho,retorno;
-	unsigned char nombre2[1024];
+	unsigned char nombre2[MAX_PATH_LENGTH];
 	char *name;
 
 	videomem=screen->pixels;
@@ -1647,7 +1647,7 @@ struct fichero *read_directory(char *cpath,enum LOAD_FILE_TYPES kind) {
 	struct dirent *entry;
 	DIR *directory;
 	struct stat estado;
-	unsigned char path[2049],fichero[2049],extension[5],found;
+	unsigned char path[MAX_PATH_LENGTH],fichero[MAX_PATH_LENGTH],extension[5],found;
 	int bucle,length;
 	
 	strcpy(path,cpath);
@@ -1938,7 +1938,7 @@ void print_files(struct fichero *filelist,int from,int mark) {
 	int bucle,numitems,ancho,pos;
 	char ink1,ink2;
 	unsigned char spaces[39]="                                      ";
-	unsigned char namefile[2089];
+	unsigned char namefile[MAX_PATH_LENGTH];
 	unsigned char *videomem;
 
 	videomem=screen->pixels;
diff --git a/src/menus.h b/src/menus.h
index 84f6560..8ba44b0 100644
--- a/src/menus.h
+++ b/src/menus.h
@@ -19,8 +19,8 @@
  */
 
 struct fichero {
-	char nombre[256]; // filename (for files and directories)
-	char nombrepath[2049]; // filename with path
+	char nombre[MAX_PATH_LENGTH]; // filename (for files and directories)
+	char nombrepath[MAX_PATH_LENGTH]; // filename with path
 	int tipo; // file type (0=file, 1=directory, 2=parent directory)
 	struct fichero *next;
 };
diff --git a/src/sound.c b/src/sound.c
index b398f9e..621891d 100644
--- a/src/sound.c
+++ b/src/sound.c
@@ -25,7 +25,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-char tabla[1024];
+//char tabla[1024];
 
 #include <fcntl.h>
 #ifndef GEKKO