I'm connecting my HD4670 to my 42" Philips LCD TV using it as a second monitor.
The card has dual dvi outputs and I use the dvi-to-HDMI adapter that came with the card to connect the tv, but no matter what resolution or refresh rate I set it to the tv has a main flickering line in the center of the screen.
I've tried 40 combinations of resolution/Hz from 640x480 to 1920x1080 and it won't stop. The only flickering the tv does is from the HDMI input from my gfx card.
Specs: AMD Athlon X2 6000 3.2GHz
2GB PC6400 800Mhz
ATi HD 4670 1GB
Vista Ultimate x32
500watt