diff -Nur ioquake3-1959/code/qcommon/q_shared.h ioquake3-1959-improved_STANDALONE/code/qcommon/q_shared.h
--- ioquake3-1959/code/qcommon/q_shared.h	2011-05-03 20:43:16.208073903 +0200
+++ ioquake3-1959-improved_STANDALONE/code/qcommon/q_shared.h	2011-05-03 21:54:41.620073989 +0200
@@ -34,6 +34,12 @@
   #define GAMENAME_FOR_MASTER		"iofoo3"		// must NOT contain whitespaces
   #define HEARTBEAT_FOR_MASTER		GAMENAME_FOR_MASTER
   #define FLATLINE_FOR_MASTER		GAMENAME_FOR_MASTER "dead"
+
+  #if MACOS_X || _WIN32 || __WIN64__
+    #define HOMEPATH_NAME	"IOfoo3"
+  #else
+    #define HOMEPATH_NAME	".foo"
+  #endif
 #else
   #define PRODUCT_NAME			"ioq3"
   #define BASEGAME			"baseq3"
@@ -42,6 +48,12 @@
   #define GAMENAME_FOR_MASTER		"Quake3Arena"
   #define HEARTBEAT_FOR_MASTER		"QuakeArena-1"
   #define FLATLINE_FOR_MASTER		HEARTBEAT_FOR_MASTER
+
+  #if MACOS_X || _WIN32 || __WIN64__
+    #define HOMEPATH_NAME	"Quake3"
+  #else
+    #define HOMEPATH_NAME	".q3a"
+  #endif
 #endif
 
 #define BASETA				"missionpack"
diff -Nur ioquake3-1959/code/sys/sys_unix.c ioquake3-1959-improved_STANDALONE/code/sys/sys_unix.c
--- ioquake3-1959/code/sys/sys_unix.c	2011-05-03 20:43:20.436074160 +0200
+++ ioquake3-1959-improved_STANDALONE/code/sys/sys_unix.c	2011-05-03 21:53:02.507824236 +0200
@@ -63,12 +63,12 @@
 			if(com_homepath->string[0])
 				Q_strcat(homePath, sizeof(homePath), com_homepath->string);
 			else
-				Q_strcat(homePath, sizeof(homePath), "Quake3");
+				Q_strcat(homePath, sizeof(homePath), HOMEPATH_NAME);
 #else
 			if(com_homepath->string[0])
 				Q_strcat(homePath, sizeof(homePath), com_homepath->string);
 			else
-				Q_strcat(homePath, sizeof(homePath), ".q3a");
+				Q_strcat(homePath, sizeof(homePath), HOMEPATH_NAME);
 #endif
 		}
 	}
diff -Nur ioquake3-1959/code/sys/sys_win32.c ioquake3-1959-improved_STANDALONE/code/sys/sys_win32.c
--- ioquake3-1959/code/sys/sys_win32.c	2011-05-03 20:43:20.436074160 +0200
+++ ioquake3-1959-improved_STANDALONE/code/sys/sys_win32.c	2011-05-03 21:53:02.507824236 +0200
@@ -94,7 +94,7 @@
 		if(com_homepath->string[0])
 			Q_strcat(homePath, sizeof(homePath), com_homepath->string);
 		else
-			Q_strcat(homePath, sizeof(homePath), "Quake3");
+			Q_strcat(homePath, sizeof(homePath), HOMEPATH_NAME);
 
 		FreeLibrary(shfolder);
 	}