Windows XP Display Control Panel Messed Up

[pmistry 0]

I can't click the Desktop tab, under the Display Control Panel item. It just crashes to the desktop, complaining that it can't run a DLL as an APP. So I have no clue as to fix this. The only thing I installed was Service Pack 1a. I tried uninstalling this and revert back to SP1 but no luck.

[sapiens74 0]

Try restore first,

 

then repair from CDROM

[pmistry 0]

My PC-cillin has detected a virus, so yeah....I have a WORM KYBOT.C and a bunch of JAVA.A etc viruses. I don't know how they got there, but my brother was using the PC to surf some weird sites, with "ifffy" JAVA programs. Just wonderful. Off to format land we go.