HD 4600 + HDTV slowdown


New member
I have a media machine setup with a 4600 HD series card hooked up to a HD TV with HDMI cable. Everything works SOOO GOOD, but when i try to play *SOME* games on it. It has massive frame skipping. Guitar hero 3 for PC is by far the worst. Its a MOD'ed GH3 and it plays fine on my really crappy computer. But it cant seem to cut it on this TV. This is also pulling 60+ FPS the entire time.

My question is, ive tried vsync, no vsync and a bunch of drivers, nothing has seemed to fixed the problem. Its running on the newest Windows 7 64bit.

Do i have ANY options?