Ok, we have gone through clean installs, using the microsoft driver and about 3 different versions of the driver from nvidia. Only under windows 7 does the issue occur, pings are very sporadic, jumping from 30-over 1000, drops connections. Under windows xp, the problem is non existent completely, I have searched and searched and searched and all I can find are issues relating to drivers *tried them all*, and issues relating directly to a few settings for the nic, all of which do not exist for this nic. Ideas? Deliver it to Nvidia's door step with a bag of poo attached?