Unable to manually update the driver, online searches suggest this is a known problem but only fixes appear to be to purchase a driver update/repair program. Is there a free solution to this problem?

Fix This device is not working properly because Windows cannot load the drivers required for this device. (Code 31) Network Adapter issue.

I'm suffering from a stability problem on my Windows 7 64 PC. History - Was working fine until I decided to move to SLI. New motherboard obtained, second 560gtx ti obtained and I thought I was ...