Media Player screen is black in projected image

[Guest]

..mpeg files won't play on a projector (Mitsubishi LVP-S250U) hooked up to my
laptop (Windows XP Professional). Everything else plays through the
projector but this. The screen in the projected media player image is black,
but the one on the laptop plays like it should. The same thing happened when
we used Real 1 as the video player, so I think it's an operating system
thing. I don't think the problem is the device driver, but I'm not sure. I
found one thing in media player's help file which said that the video won't
play if the primary monitor's screen is maximized. However, that did not
make any difference (still didn't play when not maximized).

Thanks!

 

[Mark L. Ferguson]

I would guess one of the codec for media player is corrupt. Control Panel/Sounds.../Hardware tab, "Troubleshoot" button

 

[Guest]

Thanks. I'll try that. Meanwhile, I'm having trouble doing the critical
updates on this machine. So it will be awhile until I get to your
suggestion. By the way, there are three monitors shown in the System
information (all with the same name/drivers). Could this be a problem also?
If so, should I delete two of them and let it re-recognize the projector?