hi all, hope someone can help me here.  dell studio 1555 and i installed win 7 from vista - home premium 64bit. my display/screen res etc wasn't the same as in vista so i downloaded the video driver from dell website but i still dont have correct display/screen res and i get errors in event viewer - 43029 atikmdag - display is not active and also event 52236 atikmdag - CPLIB: general - invalid parameter.

if i install ati mobility radeon hd 4500/5100 series the errors disappear but when i am in device manager and update the software it reverts back to the hd 4570 driver which i should have but the errors return.

also my fan runs loud almost constantly and i think may be this is the problem (runs loud and constant whichever driver)

can someone advise what driver to install and if the dell driver how do i fix errors?

many thanks for any help