I got a new Westinghouse 31.5 inch flat panel tv today. I have used my ps2 on several tvs with no problem. I hooked it up and tried to play Dance Ddance Revolution and the timing is off so that no one can hit the steps in time with the beat. I cannot tell visually it just says "almost" for every step. I tried hooking it back up to the old tv and it works just fine.
So if I got this straight, your using your PS2 on your flatpanel.... correct? You may have to double check your settings for both the flatpanel and PS2, regarding the aspect ratio. If it's the PS3, it's best to use the HDMI input/output.
Yes I have a PS2 and hooked it up to the new tv. It looks visually fine and we even used the PS2 to watch movies and it seemed great but then when I tried to play DDR all the steps were off just slightly.
I am not sure what the aspect ratio is but I will look into it. I think I might get a different tv though.
If you can't fix the lag I do recommend taking the tv back. Westinghouse is a cheap brand name and better brand names, while you will spend more, you will have a better experience with, especially in the long run. I spent a little more to get my Sony tv, but has everything and more with no problems playing guitar hero, DDR, or any other video games or movies. Hope you can get it working