need help with tvout for geforce 3

[pera]

hi.. ive been trying to get my tvout work for a while now and it just wont.. ive got a nvidia gf3 card where the tvout cables are plugged in.. but my monitor is plugged into another card think its called asus 8200 or something like that.. ive tried tvtool and other programs but they all tell me that the chip cant be detected.. how do i solve this?? plz help..