a have a problem....

everyone here posts about lag when upconverting content.... but i do not have that problem because i am running at the native res... i have a lag issue with my LCD TV 47lb1da... i am getting picture and sound lag with anything thats put through the tv... i am running my computer through HDMI to DVI adapter on a X1900XT... i have a deathadder mouse running winxp sp2... i also get this same lag through sound on my PS3 running at 1080p even i try to run gives me lag :/ i do not know what to do... and i am not going to buy another television... but i can not play games on my LCD TV because of this... if anyone can help please reply to this post i have tried posting in multiple forums and i have no goten an answer

yea basically anything that gets put through the television has a delay... so my PS3 is hooked up to my TV using an HDMI cable. when i connect the Optical pass through from my TV to my receiver i get a delay in audio... so it is no longer in sync with what displays on the TV... same happens on my computer with my mouse... my mouse actions are delay and so are the frames compared to my Dell 2405FPW... everything that is passed through or displayed on the TV has lag... even at native res i don't understand this :/

i just ran the method posted here
HDTVLAG
and thats what i get but there has to be some way to get this to work like my Dell 2405FPW