I have been happily using a Hackintosh for over 3 years. I upgraded it continuously over the years with little problem, including Mavericks and Aperture 3.5.1. Everything worked perfectly. I finally decided to upgrade to new hardware, including a Haswell i7 processor and a new motherboard. Couldn’t afford a new video card right away so I’m still using the same Nvidia GTS250 that worked perfectly before. Everything now works perfectly EXCEPT Aperture in Viewer mode and Apple Maps. Both produce highly distorted images. The preview images show perfectly. Oddly, if I use the loop tool over the distorted image it shows the correct image, just as it should. Photoshop and Lightroom both work perfectly, as does every other app I’ve tried. I’d add a sample screenshot but I can’t figure out how to to it here.

Any ideas would be gratefully appreciated.