Randomly, when I try to send (upload a file) through Nusphere it freezes. I lose the ability to save to my computer and it just hangs. I have to cancel all, wait for it to say continue waiting and then say no. Then it releases and I can do whatever I want.

There are many other strange things under Vista. This OS looks a bit crude.
You may want to install all the latest updates but I doubt if it will help.