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<blockquote data-quote="dm15644" data-source="post: 102357">Catalyst offers 50 Hz and 60 Hz at 1280x720. But in Windows -&gt; Display Properties -&gt; Advanced -&gt; Video card properties -&gt; Show video modesthere's only 1280x720@60 listed. My beamer's manual says that any FPS in the range from 50 Hz to 100 Hz is supported. The video card manual doesn't list the supported modes at all, but anyway this all makes me belive that my video card is the limiting factor.Actually it's not the card hardware, because I can set 50Hz, but this setting is then eventually always overruled and set to 60 Hz. Seems like a limitiation of the WDM really. Unfortunately I have no clue how to tweak this file.75 Hz is apparently not supported. What card model do you have? I have an MSI Radeon 9550 SE TD128. It's cooled passively, so maybe it runs a bit slower than other cards.Thanks for your supportjayorck</blockquote>

[QUOTE="dm15644, post: 102357"] Catalyst offers 50 Hz and 60 Hz at 1280x720. But in Windows -> Display Properties -> Advanced -> Video card properties -> Show video modes there's only 1280x720@60 listed. My beamer's manual says that any FPS in the range from 50 Hz to 100 Hz is supported. The video card manual doesn't list the supported modes at all, but anyway this all makes me belive that my video card is the limiting factor. Actually it's not the card hardware, because I can set 50Hz, but this setting is then eventually always overruled and set to 60 Hz. Seems like a limitiation of the WDM really. Unfortunately I have no clue how to tweak this file. 75 Hz is apparently not supported. What card model do you have? I have an MSI Radeon 9550 SE TD128. It's cooled passively, so maybe it runs a bit slower than other cards. Thanks for your support jayorck [/QUOTE]

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