hi.

i have very disturbing problem with my pc!!
my XP is now win 98'!!! well... i had something like this before few months...
some theme options were gone! and when i change the theme and press ok, the theme properties
crash! and no change the theme back to vista.
i dont know what to do! i fixed the problem with sp3 and it was fine. but now what?
its all again win 98'. but the folders and icons are vista look...

Check this out

Your computer looks like Windows 98 because the uxtheme.dll file has been deleted (I think) so you need to install this one again

Maybe try this patcher to use Visual-Styles under SP3

Right click -> Apperance?

Or does that not work?

Patach your UxTheme.dll with this and it should work again.