On a mac, I'm trying to work in 3D text and getting an error message 5070::2 Ray-traced 3D: Out of paged mapped memory for ray tracer. Your project may exceen GPU limits. Try closing other applications. Try updating the CUDA driver.
I went ahead and downloaded the new CUDA driver and installed it. I quit all other applications. Allotted 24 gigs of RAM for AE.