So i am having similar problems to many of the other owners. When ever I watch video streams or download things I get a BSOD and says that ndis.sys is causing it. Many people have said the Crosshair IV beta drivers fixed the issue. However, it hasn't, for me at least. I have tried both drivers found on intel's site and also all of the drivers found at asus. I guess I will have to get a new network card, but you guys should get this sorted out, since it was a problem with the crosshair IV and this is one of your most valuable motherboards. I just don't want to have to spend anymore money since I bought a GTX 590 and this mobo.