HIS 4650 W7 Driver Issue

So I have reinstalled windows 7 for the third time this year and have always had problems with the HIS 4650 agp 1GB. I have had this working many times before but I cannot remember how I eventually got it to work and was too excited to do so. I have drivers installed, but when I switch to aero theme, the start menu is all discombobulated and all text on webpages is messed around and unreadable. It works in windows 7 basic theme with 16 bit colors but not 32? Im new to the forums here but use them alot for support. I am very tech savvy, but this gets me everytime.

My Specs (Old I Know):
Pentium 4 S478 @ 3.2ghz
ASUS p4s800 (not deluxe but I had a deluxe version and same problems too)
3GB of DDR
HD 4650 1gb AGP 8x
Windows 7 32 bit ultimate
I have a wifi, sound and network card installed in the pci slots too

Please help when it works it plays bluray and everything and I do not build my main until christmas!!

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