ha sry mate , i dont have GTA 4 , If i bought it now , I'd be sure to fail my exams in February

Css , Tf2 and l4D all play great , on par if not better than vista but I havent gone into detailed tests , they play I'm happy

The new UI is GAWJUS , i mean
<3
Link

sidebar was a bit iffy to get working , but theres a thread about it on mydigitallife , you just need to replace the sidebar folder with that of vista or a previous win7 build ;0