hi everybody, a happy new year to all of you guys! I have read a lot of posts to the problem with buyed video content from the iTunes Store. Not found a solution yet. I don´t want to downgrade to iTunes 11.0.1 with my library. my Hack ist (October 2013, Haswell build): * Gigabyte GA-Z87X-OC * Intel i7 4770K, 3.9 GHz * nVidia GTX 760, the internal Intel HD 4600 is disabled! * 16 GB DDR3, 1600 MHz * Mavericks 10.9.1, iTunes 11.1.3 (8) * Apple 27" CinemaDisplay - (mini) DisplayPort * DELL U2412M (1) - DVI * DELL U2412M (2) - DVI (no problems - except the title above - iMessage, AppStore, FaceTime working fine) My HD-content from the iTunes Store works (plays) on this machine under (real booted) Windows (7 and 8.1). It also playes under VMware Windows. The content playes fine under my real macs. It streames fine to the AppleTV. Only in iTunes (oder doubleclick to QuickTime Player or VLC) i become a black screen. The same in "previews" in the iTunes Movie Store. Not playing. I think a couple of weeks ago, this wasn´t a problem... I have tried the following with no success: * only one Display (with/without Displayport) * only internal graphics with Intel HD (itunes DRM Content/Previews causes FREEZEs !!) * other graphics card (Radeon HD) * fresh install of Mavericks / new user * varius BIOS Settings Is this a hackintosh related problem only? Can someone help on this problem? thank you guys!