I also am having these issues - Specs: Mac Pro (not MacBook), installed Ram 32GB - 8 CPUs (5 allocated for After Effects) - 1.9TB har drive space on main drive with a second hd 202GB available. Three monitors plugged into the ATI Radeon HD 5770 1024 MB graphics video card. I attempted to install CUDA today, doesn't seem to help or didn't work.
| Fast Draft: | Available |
| Texture Memory: | 500.00 MB |
| Ray-tracing: | CPU |
(GPU not available - incompatible device or CUDA driver)
OpenGL
| Vendor: | ATI Technologies Inc. | |
| Device: | ATI Radeon HD 5770 OpenGL Engine | |
| Version: | 2.1 ATI-1.14.21 | |
| Total Memory: | 1.00 GB | |
| Shader Model: | - |
CUDA
| Driver Version: | - |
| Devices: | - |
| Current Usable Memory: | - |
| Maximum Usable Memory: | - |