Okay guys, I found me a good one. The file mentioned in the title, w70n51.sys is driver for an Intel wireless card. The card can be found on many makes and models of laptops. So far I’ve confirmed two Dells and one Sony to be affected by this problem. The symptom is that when you get online using your wireless card, blue screens occur. I looked through all three computer’s dump files and found that w70n51.sys is a nasty little bugger and has been causing problems for a lot of people. My only solution would be to update the driver if you can find one. Otherwise I’m still researching it and once I figure something out I will definitely let you all know.