Quote Originally Posted by avarice
I had an opportunity to try out a USB key. No go. USB is the problem. Somehow, USB support for VIA chipset got broken in the 4.0 release.
I have an MB with a VIA chipset on it. Have not tried USB on 4.0.x on that system yet. I can't test it at the moment (download in progress that will take several hours), but I will give it a try when I can and report back my results.