Tried to rev up from 3.0 to 4.0 today. Got all the way done and then got all the problems with the mouse not working and other things which were caused by tools not being installed. I tried installing tools several times and talking to tech support. The tools installer fails because it runs out of hard drive space (c: drive on windows not the Mac side). The automatically resizing hard drive feature will not work until tools is installed. My particular crash point is when trying to install the PS/2 mouse driver and then the tools installer hangs and give an out of space message. Tech support suggested moving about 2 GB of stuff off of the XP machine to make room long enough to get tools installed and then putting it back. I told them that was unaceptible and I was going back to 3.0 (which I did) and when they got a conversion and installer that worked (if it is going to run out of hard drive space installing necessary stuff then the installer should allow for and fix that.) then I would try again. I sent a couple of terse e-mails to tech support which are unanswered as of yet, and told them to get there act together, rewrite the installer, and get me a copy that works.