server 2008 hard disk icons

[Guest john]

my server 2008 hard disk icons are broken. All other icons look

fine, including removable disks, desktop icons, etc. But the hard

disk icons have been replaced with the generic icon that appears for

files with no association.

 

screenshot:

http://img169.imageshack.us/img169/7616/60752309ox4.jpg

 

what could the problem be?