I have a computer connected with my 52 inch widescreen rca projection tv. i have connected the RGB wires and i cant play any game with the resolution at a 780i cuz the refresh rate dont change to 60. it can only used at 30. yet im able to put it at 1080i. would i have to download a driver for the specific tv? i have a nvidia 8800gt video card. when i connected the dvi wire. i can resize the screen but about 2 inches of the right side gets cut off. theres on way to move the screen. is this a tv issue or does it have to do with the video card itself?