Hello all, I recently purchased a used 30in Cinema Display. The previous owner let me test it on his mac pro and everything seemed fine. When I got it home and plugged it into my Macbook pro, there would be green dots and horizontal bars that would display on the monitor. I thought it was just my macbook's video card so I connected it to my desktop PC. I'm running a Radeon PRO 2400 w/ Dual link DVI. The monitor displayed fine during the bios boot and windows xp loading page, but when it got to the actual windows, the display went crazy again. Here are some pics of what I mean. Are there anyone that has encountered this problem? I'm beginning to rule out a video card issue and leaning towards a hardware issue with the display. I'm not sure if it makes sense though, if it displays the bios and winxp load page fine and crap out when it gets to the actual windows.