This has bothered me for some time. I tried to install Directv2PC on my bootcamp partition of my Mid 2010 21.5 Intel i3 3.2GHz iMac. It installs fine under Windows 7 and will even run but as soon as I try to start watching off of my DVR it will play for about 2 seconds and give an error saying that I'm not using a proper output. I have gone out and got the latest video card drivers for my Bootcamp side and can only think that the mini display port is showing as open in the config. Is there a way to shut this off in windows at all? Has anyone ever had success running this program? Thanks in advance!