There could be a problem in compatibility mode i suppose.Try running it without compatibility mode. Im using Acer Aspire 5520 with acers default drivers and anything works fine.
Warcraft 3 and Frozen Throne GTA San Andreas GTA Vice City Age Of Empires 3 /WarChiefs/Asian Dynastes Counter-Strike 1.6 All those ran for me well. Used 64-bit Windows 7 RC