Hello, Newby here, I purchaced a P4A+ refurb a while ago and have not been able to get the video to play properly on my windows computer. Only the top half of the picture appears on the screen and then it freezes. I have just changed the format from MOV to MP4 but have not tested yet. I would have thought the sandisk card that came with the AC should be ok but have ordered a new and upgraded card. Anyone have any thoughts on the format change? Photos are no problem.