Multi-Monitor Madness
 

I have two monitors connected via Nvidia Quadro FX3700M (DVI) with the latest drivers, plus a DisplayLink DVI adapter. As soon as the DL adapter is detected, my primary monitor is un-detected (I get the little dun-dun of a disconnected device). It is then re-detected and un-detected repeatedly until I unplug the monitor from the computer.

At first I thought it was the Dell dock I'm using on my M6400, but I found that by uninstalling 5.3 and reverting to the driver included in Windows Update, my problems have disappeared. Win7 Pro x64.