"C:\" drive icon has changed on Vista

Hi all, something weird happened to me these thee last days, i was using the software HJSplit 3 or 4 month ago, but recently when i try running the application it refuse to load, so i tried to clean all the registry entry for it, now after rebooting today, i see that my C drive icon is the same of the HJSplit icon like this screenshot show, my question is does anyone know a way to restore the C icon for vista

http://images.imagehotel.net/52c238f13c.png

my system restore points disapears after 2 reboot, so i can use it:cry, i'm gonna reformat soon if those weird things continu to happen

 

Sorry for this up, but i only install the new version of TweakVista and the icon come back. very weird, but i'm happy now