- Joined
- Apr 16, 2016
- Messages
- 1,096
- Reaction score
- 51
- Points
- 48
- Location
- CT
- Your Mac's Specs
- MacBook Air Mid-2012 / iMac Retina 5K Late-2014
Many of the new boot managers will leverage your "higher-than-VGA" display resolution to give you a cleaner, crisper screen at boot time to choose your startup environment. Apparently, this one has an issue with possibly not completely releasing the memory registers or something and causing the display to not function properly when being driven by Mac OS X.