It is not uncommon for vista to take an inordinate amount of time to open the briefcase, but there are some steps you can take to ensure the process is smoother. Please have a look at
this link. maybe
this one too.
You could try run as with UAC turned off, and see if that's the issue.
link here. and
here. and the definitive
scope here.You may just not have permission.
Have you tried creating a briefcase from within vista and moving it to the xp system instead?
Are you otherwise able to access data on the flash drive? If not, look for driver updates from the manufacturer to make it compatible with vista.
Finally, have a look at the event viewer &/or device manager and make sure there are no error codes associated with the drive that are preventing access, or see what error id is associated with the explorer hang. If you get a code, report back and we'll be happy to look into it.
I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!