hello, i need some help. i have a a asus p4s800 and i try to use a gforce 4 mx 440 8X 128mb on it, but it doesnt work. the mother board just beeps 2 times and no display comes up. i use an older gforce 2 mmx 64mb and that works fine. it should be compatiable shouldnt it? but it doesnt work. also, i know that the gforce works for a fact because i have tried it with another system. thank you..