i have a sparkle nvidia 6600gt g/card plugged in to a asus A7n8x deluxe mobo. now when i turn my pc on i dont always get picture. i have tried the card in a different pc and its seems ok so im guessings its the mobo but i wonder why sometimes it works and i get picture and sometimes i dont get any picture. if i restart my pc say 10 times i might get picture 1 out of those 10 times. any ideas???