Windows 7 Theme Problem

[ciaranmcw]

okay so i have a problem on my pc.

im running windows se7en Rc Build 7100 on my dell xps 420.
it is a good machine with a 8800gt 512mb graphics.

it was working fine yesterday, but when i turned it on this morning the theme was set to windows classic with no aero peek or such.
so i went to select the theme back to windows 7 but it was all blacked out and iu could click it. the same for all the aero themes.
so then i downloaded a new theme, and tryin installing it but i got this:
'this theme can'y be applied to the desktop.
try clicking a different theme'

whats wrong with it?
i cant run a system restore as it says there is none?

yesterday i installed enhance my se7en and smart defrag.
i didnt do anything on the two apart from a system defrag and a disk clean up.

but after this morning i unistalled the two but it didnt make a dif.

please i need help fast!

 

[Yami]

Sounds to me like 'Enhance my se7en' did something to your system which wasn't undone by installing it. Programs like that mess with system files, and when you combine that with a release candidate OS, often you can run into problems.

 

[KSoD]

Well it could be something that those programs you installed did that caused this. Have you checked to make sure that your video drivers are working properly?

 

[Trotter]

Have you checked to make sure that your video drivers are working properly?

Most definitely. Aero requires some graphical horsepower to run. Odds are your video driver has screwed the pooch somewhere along the line.

If it were me, I would download the latest driver, uninstall the current one, and install the new one.