What OS? Did you run the update? What kind of project? I've got no idea what might be happening because you've told me nothing except that you have a problem.
Thanks for your Reply Rick
Mac OS X (Version 10.7.5)
Processor: 2 x 2.4 GHz Quad-Core Intel Xeon
Memory: 16 GB 1066 MHz DDR3
Graphics Card: ATI Radeon HD 5770
I am running version 220.127.116.11. I actually saw that there was an update for 11.0.2 but it doesn't show when I go the Help > Updated route and when I download it directly it doesn't install because of an unknown error.
The project is a motion graphics piece containing a lot of shape layers, nulls, and some imports of tiff sequences from Cinema 4D. It tends to crash when I'm trying to playback using the space bar to check timing of the piece or when I let it play on a ram preview loop.
Thanks Mylenium, I had to save your suggestion until today and now realize that I am unable to uninstall CS6 by the uninstallers for some reason. Also, none of the programs are showing up in the Creative Suite Cleaner Tool window.