I've got a Linksys Wireless-G USB network adapter and recently it's started acting a bit strange with FC4 test 3. Before it was randomly freezing my system, so I turned off the 4K stacks option in the kernel and recompiled ndiswrapper, and that seemed to help. But now it's just randomly failing to function every 30 seconds or so, and I have to either unplug it and plug it in again or go to Network Device Control and restart it for it to work, and those two options aren't all that reliable anyway; sometimes when I unplug it the system just freezes. I'm using ndiswrapper 1.2rc1, if that makes any difference... I'll try 1.1 now...