Graphics card. Hi my name is Todd. i have a new AMD X2 dual core [asus] pc. I just installed a

Question

Hi my name is Todd. i have a new AMD X2 dual core [asus] pc. I just installed a Geforce 8400GS graphics card. also a new sound card. the driver for sound card downloaded and works but I cant get 5.1 sound from all speakers. Most importantly, when i try to download the graphics driver the computer says can not find vga card. Im pretty sure its installed correctly. what do you think......Thanx. [e-mail]