After updating to MEPro 2013 ver 12.0.4.4 I can no longer close the program. Since I have to force a close using Task Manager, the project .MVP file is not saved correctly. I have rebooted and restarted several time with same results.

Is this a known bug with 12.0.4.4? What can be done about it?

At this point my project is lost, and the program can no longer be used.