local access or no networks

I had been struggling with these errors for several weeks, nothing seemed to correct the problem except rebooting and even that was a temporary fix at best. After reinstalling vista the problem got progressively worse and then an idea came to mind- I pit in an old network card I had laying around and viola no problems since! I have a 680i mb, nvidia chipset with built in network ports. Just a heads up for anyone having network problems with this mb configuration- I don't know how common this issue is but I have solved mine and will be definitely getting an intel chipset on my next upgrade, and maybe a new wig as I pulled out most of my hair figuring this out!