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Old 08-10-07, 11:31 AM   #2
hordaktheman
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Join Date: Aug 2002
Location: Iceland
Posts: 273
Default Re: HD Stuttering on 720p HDTV but not 1080P Monitor

It could depend on any number of things. What kind of media is this (Matroska, WMV, h.264) and how do you connect the computer to each respective display? Are you, for example, using DVI for the monitor and component for the TV? Are you using a PAL television at 50hz and the monitor at 60hz?

You might want to try making sure your TV is running at 60hz, or even unplugging the Dell and using your TV as a single display. My first thought was that the two displays are running at different timings, but it could also be that your TV (being a secondary display) isn't getting enough processing resources allocated to it.

Also, try shutting off any video acceleration on the graphics card and have your CPU process the video. If the video stream is native 1080p resolution, it could be that either PowerDVD or your graphics card is having issues downscaling it.
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