I'm planning on purchasing the latest 2015 MBP (w/Intel Iris Pro Graphics). Likely the 13" model. From what I understand, in order to output to my 6yr old 30" ACD, I'll need to purchase the Mini DisplayPort to DVI Adapter. Many of the reviews I've read about this adapter complain of problems with flickering, waking from sleep, screen artifacts, or no image at all etc. -- though many of the reviews are years old. So my question is: Does anyone here have an identical setup (late model MBP without discreet graphics) and a 30" ACD connected via this adapter? Are you pleased with the performance, or has it been a nightmare as others have found? Is it sluggish at all? thank in advance.