Are you an actual Napster to Go subscriber, because I'm curious if its just a problem I'm having? Every 3 to 4 days my tracks no longer open, and I receive a message telling me to log back into my Napster account to reactivate my license.
Also, when trying to log back into my Napster account, windows scans every file (3000+) and updates the license for each file. This results in at least a 15 minute wait, sometimes longer on P4 3Ghz with nice specs.