Why do all videos playback with gray screen?
Suddeny today, any iTunes video content that I purchased will not play back. The audio is fine, but the video is a solid gray screen. Any ideas?
MacBook Pro, Mac OS X (10.7.4)
So far, I have tried:
1. Re-staring in safe mode.
2. Repairing permissions with Disk Utility.
3. De-authorizing and re-authorizing my computer.
4. Copying a video file to another Mac, authorizing the other Mac, then importing the video file to the iTunes library on the other Mac. The file will play with normal sound and video on the other Mac.
1-3 achieved nothing.
4 shows the the issue is isolated to one specific Mac.
