how do i solve this annoying Win7 bug?

no matter what window im on, as soon as i click, it "flickers"

i could be typing something, all of a sudden it flickers and selects all text while im busy typing so i lose what ive done

Tried reinstalling DirectX,, Tried reinstalling Flash, reformatting does NOTHING for the problem

Aero is turned off, Indexing service is turned off and im using the Windows Classic theme, still flickering

tried every virus/spyware/malware scan under the sun, all of them finding nothing, not even trend Micro HijackThis is seeing anything out of the ordinary

what do i do?

should i go back to XP? and how would i buy an XP key since XP is "obselete"

never EVER had these issues in winXP

i know that theres a WinXP virtualization mode, but thats useless as it only has a 16 bit refresh rate

i have tried a google search, but none of the solutions helped me

using Windows 7 Ultimate 64 bit

I called the state of Texas, and left a voice message for someone who works for the county planning commisison. I DID not include my e-mail. But, the next morning, upon checking my e-mail, I had an answer from the person I called (not e-mailed). She said that she simply did a GOOGLE search on my name and came up with one e-mail. I tried for one hour to duplicate this, and evern I COULDN’t find my e-mail address. HOW DID this person find my e-mail?
Can anyone help? I am concerned that she found it, I am concerend that I feel ten years behind the times, in not being able to do the same thing.
thank you