I have the Phantom 2 and a Mac. Everything has been working great but I went into PT2 and RC to calibrate and to switch to ioc. I also slowed the gain on the gimbal roll. At some point it suggested firmware upgardes so I completed them (not sure what they were at this point) but my flysight monitor started acting wonky. My image all of a sudden was skipping. There are bars scrolling through my screen constantly and I can't really see the image clearly. What happened? Flew it in cl mode and everything worked great except the monitor. I have tried everything. I switched to a new video transmitter, checked connections, bypassd anti-interferance board, replaced ribbon cable in gimbal (which was a pain in the ***), and I tried a new gopro. None of these made a difference to the monitor. So I started researching how to downgrade firmware as that is the only thing I did that may have caused the monitor to go crazy. I started experiencing problems with the PT2 and RC apps so I uninstalled them and re-installed them on my mac os. Now when i connect the assistant opens but gets stuck unless I press skip. But if I press skip it opens assistant with blank readings. The usb is connected, the power is on and I hear it connect (chime). After speaking to my dealer for 2 hrs he had me install parallels and windows 7 on my mac as he said dji is not mac friendly. I completed all of this and installed the WIN installer and assistant. When I open thees apps through windows I get the same problem! It just gets stuck unless I click skip. I also bought an iosd mini and installed it but before I closed the body up I tested iosd assistant and same problem. Gets stuck. So now I have taken the iosd mini out and hooked everything back up the way it was for the last couple months. Video transmitter, gimbal to anti-interferance, etc. I've been trying to find a solution for 10 hours and have hit a dead end. Does anyone have any ideas? At this point I am just trying to open PT2 and RC to check settings and see if it flies. I'll deal with the monitor craziness later I guess. I have worked really hard to get this thing to perform the way i need it to and I was pretty much there. Here is a demo of some shots I got. https://vimeo.com/101758114 Please advise and Thanks!