Why do the overlay icons sometimes change to random graphics?
The Windows icon cache is a fairly buggy creature. You can solve this in one of the following ways: • Rebuild the icon cache by using the Rebuild Icons command on the CVS submenu. • Or increase the icon cache size. Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer and add a new String Value called “Max Cached Icons”. The default value is 500 – try increasing it to 2048 (see http://support.microsoft.com/support/kb/articles/Q132/6/68.asp for more details). • Or delete the file called ShellIconCache in your Windows directory. And reboot.