AVS Addicted Member
Join Date: May 2003
Location: Orange County, CA
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S-Video is not component it is SD 480i NTSC standard video
HDTV YPrPb component uses 3 cables that have red, greeen and blue RCA connectors
When 1080i is de-interlaced back to full 1080p when received by your TV.
Your 8500GT can not handle the load your are putting on it by trying to output 1080p/60 especially is you are driving 2 displays.
So output 1080i instead over HDMI instead.
You apparently selecting no scaling in your drivers which is why a 1280x720 desktop is only a subset of your 1080p output.