Thanks teedoff087 will do. I hope it fixes the issue. Troubleshooting this isn't fun at all. Looking at your specs, how do you have system organized? I just bought a imac to run logic x and coming from a macpro with all the drives and ports, a imac with 4 usb and 2 thunderports seems lacking. On my macpro I have 4 drives: 1, system and programs 2, recording 3, Vst/Audio Units library and 4 for storage.
Thanks,
adavis