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<blockquote data-quote="mckzoo" data-source="post: 287623" data-attributes="member: 29260">Curing the flickeringIf it's any help I originally ran MP on XP but also had high CPU loading when viewing HD channels. I was using a dual screen cpu card EN8500 that supports hardware acceleration, but under XP I couldn't get the H/W accelration to work. On channels like TV3 I was getting up to 90% CPU loading. Also the EN8500 had the annoying feature that on power up it would only show the pc bootup screen on the HDMI output, whereas I wanted it on the VGA output.To solve the above I upgraded to&nbsp; an EN8600 card (solved the bootup issue but not really necessary for your issue)The key thing to do is upgrade to Vista. This uses VMR rendering and allows the Hardware Acceleration on your Graphics card (provided it has this capability) to kick in and ofload all video processing from the CPU to the GPU.The effect was Dramatic. CPU usage dropped from ~90% to ~ 7 % (maybe 10% peak).Even with this I still had some screen flicker etc.I then looked in the Nvidia utility and changed the Screen setting for the Sony Bravia TV from 1080i 50 Hz to 1080i.Dropping the 50Hz setting made quite a difference and now I don't get any flickering at all. I think this allows the sony tv to do it's own adjustment for frame rate etchope this helpsmckzoo</blockquote>

[QUOTE="mckzoo, post: 287623, member: 29260"] [b]Curing the flickering[/b] If it's any help I originally ran MP on XP but also had high CPU loading when viewing HD channels. I was using a dual screen cpu card EN8500 that supports hardware acceleration, but under XP I couldn't get the H/W accelration to work. On channels like TV3 I was getting up to 90% CPU loading. Also the EN8500 had the annoying feature that on power up it would only show the pc bootup screen on the HDMI output, whereas I wanted it on the VGA output. To solve the above I upgraded to an EN8600 card (solved the bootup issue but not really necessary for your issue) The key thing to do is upgrade to Vista. This uses VMR rendering and allows the Hardware Acceleration on your Graphics card (provided it has this capability) to kick in and ofload all video processing from the CPU to the GPU. The effect was Dramatic. CPU usage dropped from ~90% to ~ 7 % (maybe 10% peak). Even with this I still had some screen flicker etc. I then looked in the Nvidia utility and changed the Screen setting for the Sony Bravia TV from 1080i 50 Hz to 1080i. Dropping the 50Hz setting made quite a difference and now I don't get any flickering at all. I think this allows the sony tv to do it's own adjustment for frame rate etc hope this helps mckzoo [/QUOTE]

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