Using v10 on win XP, video card is Gforce 6800 gt with 256 MB memory. Plenty of memory and hard drive space on the desktop. Sudden crashes occuring when in the 3D window. AC just blinks off. No warning, no problem, just turns itself off.
Have a 19 in. screen; resolution is set to 1600 x 1024, 85 htz. refresh rate, full hardware acceleration, write combining is on. (don't know what it is, but is on)
Any clues there?