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A handful of Air Display users on Mac OS X have reported seeing a blue screen after updating the Air Display Connect software. The main screen turns blue, and the Finder never appears. To most users, the Mac appears to be unusable. This is a pretty serious problem. Fortunately, (1) it has only affected very few users, and (2) there’s an easy workaround.
The problem is simply that Mac OS X occasionally corrupts its kernel extension cache. If you boot to a blue screen, you can recover with these two steps:
- “Safe Boot” your Mac: Select > Restart, then press and hold the Shift key immediately after you hear a tone. Release when the Apple logo appears.
- Restart again.
All should now be fine and you should not see the blue screen again.