I have a Sony 1271Q that is run by my HTPC. I just got a new video card, a PNY Geforce4TI 4200 8x 128MB. When I use this card to project it will be fine until I do something graphic intensive like watching a dvd. When I watch a dvd it creates a double image. It will also create a double image if I make my windows desktop completely black. I put the video card in my older computer & it projects dvds fine. I put my old video card in my new pc & it will work fine. Does anyone have an idea what could be causing this?