I have a red line running vertically down the middle of the screen when playing movies with media player on windows 7. How do I correct this?

Anonymous
2010-02-02T08:53:03+00:00

This happens with Windows media player and windows media player classic.  I can us vlc and I do not get the red vertical line running down the screen.  No matter what movie I play the line is there.  But it does not appear untile I actually push play.  When I originally open the player I have a blank black screen.  But once I push play the movie starts and the red line is there.  Fast forward, rewind and pause, the line remains.  How do I solve this problem?

Windows for home | Previous Windows versions | Music, photos, and video

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  1. Günter Born 49,446 Reputation points Volunteer Moderator
    2010-02-02T10:34:30+00:00

    Did you install a codec pack or video software? That may be the cause.

    Did you install W7 as an upgrade to Vista?

    One other source of trouble (not likely) is an incompatible video card driver.

    Also Catalyst settings will be responsible for such a line.

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  1. Anonymous
    2010-04-24T20:11:50+00:00

    I have noticed that with Win7 after playing with the Catalyst settings in 'Avivio video ' you will see 'all settings ', then scroll all the way down and there will be a fieldset named 'video demo mode '.

    1. If you have 'video demo mode ' settings 'enable demo mode ' check marked with split screen mode as an option, you will see a red line. To remove it, simply uncheck 'enable demo mode ', press 'apply ' and then close with 'ok '.
    2. sometimes, you may see a green line, which is a driver for the video card, FFDSHOW or some other codec messed up, or the video card could be damaged, not pushed in all of the way in a pci, agp, or pci-e slot.
    74 people found this answer helpful.
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  2. Anonymous
    2010-06-12T05:19:33+00:00

    Tried several suggestions to fix this Red-Line issue from other windows help forums.  Nothing worked, most were generic B/S.  The above one solved the issue for me.

    Thanks.

    2 people found this answer helpful.
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  3. Anonymous
    2010-08-05T20:19:49+00:00

    the above suggestion works like magic !

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