After being able to use Compressor without an issue it is now telling me it can't open, with this message 'Compressor requires that your system have a Quartz Extreme Capable video card'. Nothing has changed, I have not changed my video card and now this is happening. I don't think I can go a week without there being some kind of computer issue with my new setup. I never thought I'd say this but I had far less issues with my old Windows PC. Please help, Damian

I have now restarted my computer and it now works. I didn't change a thing. Just restarted it. Any thoughts as to what is happening here. It seems as though my computer has issues..Thanks, Damian

Could you post back with a list of your system specs, i.e., which Mac, processors, speed, RAM, OS, etc.

Here are the specs in the about this Mac section: Hardware Overview: Model Name: Mac Pro Model Identifier: MacPro5,1 Processor Name: Quad-Core Intel Xeon Processor Speed: 2.8 GHz Number Of Processors: 1 Total Number Of Cores: 4 L2 Cache (per core): 256 KB L3 Cache: 8 MB Memory: 8 GB Processor Interconnect Speed: 4.8 GT/s Boot ROM Version: MP51.007F.B03 SMC Version (system): 1.39f11 SMC Version (processor tray): 1.39f11 Serial Number (system): YM0490LTEUE Serial Number (processor tray): J504701SPCZJB Hardware UUID: FD114148-0364-5CA6-88E9-DB37682F9503 Does this explain anything?

Personally, I would consider doing a hardware diagnostic test (or better taking it to your local Apple store to check out) - because you simply shouldn't have been experiencing all the issues you've been referring to.

I think that's a good idea. It does seem weird that I am having these issues, the computer is only 2 weeks old. Thanks for your help.... Damian