Also try out the official drivers off of AMDs site
HERE. These are the ones specifically made for Integrated Graphics. Be sure to allow a complete installation, South Bridge install and all. This way you not only get the graphics driver install, but the chipset and GART drivers get reinstalled as well.
If these don't work then it's a good bet that neither will any modified drivers. However, if it does work, then you could move onto the modified drivers.
BTW, be aware that you should never uninstall the ATI/AMD IGP drivers whether you do so through Add/Remove Programs, or via DriverCleaner. If you do you run the risk of messing up your system.