Weird DVD playback issue and internet video problem

Hello everybody and thanks for taking the time to read this. I'm not sure when it actually began but I do know that the problem was there on Monday when I tried to watch a video online and the flash video only showed up as a green screen that crashed the browser. A few minutes later I tried playing a DVD that had worked on the PC before and Windows Media Player recognizes that it's playing but only the sound plays none of the videos show up on the screen. It's the same thing in Media Center so I'm wondering if it could be a graphics card problem.

Several things I've done since:
1. Install a new DVD player in the system, same thing happened
2. Did a system restore to an update that occured Saturday, no joy
3. Undo the restore and reinstall graphics drivers, no luck
4. Install VLC Media Player, doesn't work right with taskbar but the DVD is playing fine

The only thing I recall doing that could possibly have ruined this was I removed the heatsink from the graphics card and applied my own thermal paste to the card in order to move a little more heat from the card, I know I did it corectly since all four screws are back in (games play just fine and temps seem a little high). Can anybody help me my last option is to completely reinstall Windows and I don't want to take the time to do that.

System Specs
OS: Windows 7 Home Pre 64-bit
CPU: Intel Core 2 Quad Q6700
Mobo: Dell BTX P965
GPU: Asus Radeon 4870 1GB
PSU: Antec EA650W
HD: 320 GB Seagate
5 answers Last reply Best Answer
More about weird playback issue internet video problem
  1. It sounds to me like you have a Video Codec Issue. It is likely that at some point you have installed software that has included a Codec that has taken over from or is conflicting with the Codec's that normally ran your video. Check out this link it may help.
  2. That website didn't help too much since Windows Media Player/Center has problems playing MPEG-2 DVDs, something that VLC doesn't have a problem with. The flash thing I also managed to fix by disabling hardware acceleration so that the green screen went away, but acceleration was the whole point I keep upgrading Flash player (aside from security fixes). I really think it's a graphics card problem but I can't figure out how simply changing out thermal paste could have caused so many software problems. The worst thing I could think of that could happen is the card overheats and but I don't think it would impair its ability to play video since it isn't.
  3. Best answer
    I really don't think it is your GPU. Apparently there is a problem with Adobe software which is causing the issue if these sites arecorrect. The only current workaround is to turn off Hardware Acceleration which you have done. There is a point of contention as to whether this is Adobe SDK related but it does seem to remove your GPU as the prime suspect.
  4. I just don't understand how the problems only start creeping up now when I installed Flash at least two weeks back with few problems. Anyway if there aren't any other fixes for media player i guess I could live with VLC and having Flash player off.
  5. Best answer selected by mister g.
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