Originally Posted by mrplow

The issue you are getting is common in the hackintosh world by the looks of a bit of googling around. I'm wondering if your iMac video card is faulty.

Unless another member has other ideas I'd suggest contacting Apple. I'd suggest making an Apple store appointment and going back with the iMac and software (I know that it's a pain, carting an iMac around).

While you're there perhaps consider returning the boxed edition of the software at $500 it's much more expensive than it's digital download version through the Mac App Store $200 for Logic Studio and $30 for Main Stage