i'm trying to set up my MBP (with thunderbolt) to be the primary monitor and have my iMac (only mini display port, no thunderbolt) as the secondary. i used an HDMI to mini display adapter and it didn't work. My Display Settings didn't change and couldn't get the iMac to detect. i tried out Air Display to see if i can set up dual monitors. so the issue with using Air Display is my iMac can detect my MBP but my MBP cannot detect the iMac. does anyone have their dual monitor set up with an iMac and a MBP and if so what are you using and how did get these two to detect each other?