I've had a DWA-652 on my mifes Dell Insi**** note book sice around Oct 1 2008.Been working great with the DIR-655 router. Today I got a blue screen with ndis.sys error. Rebooted, same problem. Removed the 652 and went with the the built-in 11g/54 wireless and changed the DIR-655 setup to accomodate, but that leaves me without WPA2 security and open to anyone. Any ideas how best to correct it so we can go back to 300mbps?