Bulid 1940 and 1848 were the final releases at their stages of development. However we already know at least some of the Parallels employees are reading this forum. I'm sure that they know that many people are having problems with their USB and other problems as well. Andrew @ Parallels already said to me in a PM that Parallels is already planning to upgrade to USB 2.0 in their next major release. So what's my point? I think that your problems as frustrating as they are right now EVENTUALLY will help them to build a rock-solid system. Let's remember also that this technology is fairly new.