politenessman

i saw your thread while googling this problem. i have the same prob from my gaming machine and my viewsonic 37". everything looks great, except for tv on the media center. even dvd's and divx played in media ceter look fine, just not live tv. i have tried hdmi, component and vga, all with same very dark video. also have tried 2 different hauppauge tuners, hvr 1600 and pvr150mce. so this leads me to believe that its either my video card (will swap that out tomorrow) or one of the windows updates. have you installed all the updates available for vista 64? i have to tell you that i am glad i found someone else with the same prob. i was beginning to think my display was zorched in some way.