I watched a video today from a company called Nokia that explained how a device called the N900 worked when switching windows, etc. The video was about one minute and thirty seconds long. I tried and tried to play it, but the furthest I got was about fifteen seconds from the end. I didn't get any error messages, the video just stopped. I spent about ten minutes working on playing it, never saw the end. I don't know why that was, but I don't think my system is set up in a super-impaired way.