I have not seen any ticket from you at all. I just searched on your email at rcn, and do not show any new tickets you placed.
As to your issue, can you tell me do you have all of the Windows Updates installed on your computer? Did you do these changes, they were changed on March 13?
http://www.mtu.com/upgrades/hoster/windows7-changes.htm
What type of songs are you playing when this happens? Are they .mp3+g, .zip, .kma, .kmh, .bin?
Do these items first, then if this still does not work, please put an Emergency Ticket in here
http://www.mtu.com/support/how-to-move-registration.htm