Nvidia Geforce 8800GTS overscan

hi guys, im using my 8800gts, and i cant seem to get it full screen on my 32" HDTV, its connected properly and it worked on my old card but on this one i have issues with it. ive read up on other sites about the overscan problems, but i jsut was wondering to see if anyone else had any workarounds for it. i have a file which actually fixes the issue, but you have to double click it, restart then use it. and you have to do this everytime you want to do it, it doesnt just stay!
thanks!