Photoshop bug

Im having a problem with various dialog boxes in Photoshop such as the curves dialog. The background of the grid section of the dialog is suddenly black where it used to be white. I can't see the curve itself now since its black also. I've tried reinstalling Photoshop and even reinstalling windows 98 but niether fix the problem.

Has anyone else had this problem? Any suggestions would be most appreciated...

Did you install any of the service packs or upgrade to IE 6 before you started having this problem? I have been hearing from different forums that it seems with the IE6 upgrade Win98 is getting buggy. It is probably Bill Gates' way of convincing us to upgrade our OS, that bastard.
I havent heard of the problem with PS like that, you might try checking the Adobe forums and see if anyone else has had that problem. Also make sure your C drive or your OS drive is not the scratch drive. Just a thought.