I am running Windows Vista and purchased MEP 17.  It has worked fine the few times I have used it, except for twice.  The first time, I started the burning process and the computer froze.  I had to turn it off and restart it.  On restart, it competely corrupted my hard drive and a new drive had to be installed.  The second time the computer froze when I started burning, I shut it down and was able to restart in safe mode and then do a proper shutdown.  After the shutdown and restart, I started MEP again and was able to burn the movie the second time.  Why am I having this problem?  Is there an update to fix this?

Thanks