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Ok, Here's the issue in a nutshell. When I play a video file (avi, mpeg etc) I get the sound but the creen in the media player is black. Complications and points of concern follow...
1. It dosne't matter what media player I use, the same problem persists (WMP, VLC, Real, Quicktime and others tried)
2. These files worked before. FOr somereason, the problem, which is across the board, just stared recently
3. It happened one night After I froze playing Oblivion and had to use the manual restart.
4. I have also recently been fiddleing with dual display stuff, one of which being a projector. Not sure if this is related, but it might be
5. All my codecs are up to date. There was no change made in my codecs between the time whe they worked and when the didnt. Is there such a thing as too many codecs.
6. The problem is extended to indternet videos, but not all of them. Internet videos that open in a windows medai window don't play. You-Tube works.
7. I think thats it. I feel like there is a very simple solution to this that I just don't know. I was told that pressing F4 would do the tric because that toggled the video, but that didnt work. But maybe I did it wrong.
8. Thanks to anyone in advance who tacked this. If there is any other pertinant info I left out, tell me so I can help you help me. Thanks again!
Sounds like all overlay video is being redirected to your second display port. Reconnect the projector or any TV to confirm. I don't know how Nvidia handles secondary displays but you should be able to get into the control panel and disable the secondary display, or turn off "theater Mode" (ATI lingo).
A friend with an All In Wonder card was regularly calling me about "lost" windows. He ran a permanent cable to his big screen and anytime ihe TV was turned on the ATI card would detect it and automatically switch to expanded desktop mode, along with Theater Mode which directs any overlay video to full screen on the secondary display. Problem was, he didn't see what was happening because his TV was tuned to cable.
I'm guessing the reason you can see some online videos is because they are using flash player which does not use overlay.