Have you seen this????
I'm using an iMac + leopard+ATI,RadeonHD2600 with 256Mb.
I had this problem in AC11, and With AC12.
Nando Mogollon
Director @ BuilDigital
nando@buildigital.com.au
Using, Archicad Latest AU and INT. Revit Latest (have to keep comparing notes)
More and more... IFC.js, IFCOpenShell
All things Solibri and BIMCollab