on cgtalk there is mention that catalyst 8.1 drivers are working for ATI users. no good fer 4800 series tho? as 8.7 is the minimum driver supported? maybe werth a looksee fer users with older ATI cards
hardware requirements are up: don't use geforce or radeon... AO on nvidia only. not on fireGL either. only quadro 600 series like 5600 and it takes super unleaded only. eat rich people... they taste like chicken