No Aero theme - Widows Experience Index Not computed

So I just overclocked my processor a few points, and upon booting up my computer, the Aero theme was 'busted.' I tried running the troubleshoot, which claimed I had no issues.

I opened up the Windows Color option, and was greeted with only a Windows 94 looking theme option. (images below) Everywhere I look has no information on this issue.

I fail to see how overclocking my processor only a little bit would cause this issue. All of my drivers are up to date, my computer can easily handle the small amount of overclocking I did, and windows is up to date.
I tried going to Performance and Information and Tools and using 'Re-run the assessment,' and I get 'The Windows Experience Index for your system could not be computed.'

I run with a NIVIDIA GeForce GTX 550 Ti and a 990FXA-UD3 motherboard with an AMD FX-4100 Quad-Core Processor now overcloacked to 4.2 GHz with dual monitors.

I have 12 GB of DDR3 RAM and my OS is Windows 7 Home Premium 64bit.

Please help.

Desktop
Windows 94-esc Option Only

I did, yeah. I looked at all the themes and the color options for the themes and there were no changes.

Why wouldn't you get the official drivers from the site? Thats just silly.

Anyways I reinstalled the drivers and everything seems to be fixed now. Dont know why, but all I care about is the fact its working.

I raised the voltage and changed the multiplier. I'm not bringing it up to 4.6 GHz.

Turned on my computer today and the same issue is back. I really don't want to have to reinstall my graphics drivers again.