I've been trying to set my computer with my Samsung HDTV. I am pretty sure that my TV is capable of 1080p, but when I set the resolution on 1920 x 1080 at 60Hz my TV doesn't show anything but "Not supported mode". The highest resolution that I can set the TV on is 1280 x 1024. any idea?
TV: Samsung HL-S6187W
Graphic card: ATI Radeon x1650pro (512MB 128bit)

connection: VGA cable