That's not it but if you got that from 'system information', look in components and then display, it should tell you your adapterwap wrote:@ Hoax
You mean this?
Microsoft iSCSI-initiator
NVIDIA nForce 430/410 Serial ATA Controller (2x)
If you've got a seperate graphics card or just and on-board chip, once you've found out just select it from here - http://www.nvidia.com/Download/index.aspx
Although if you say the connector is horizonal and you have a graphics card, find out what model..afaik you can use ati cards on an nforce mobo chipset, so you'll obv need to go to the ati site for them. Although I'm sure windows update gets graphics drivers for you these days?