MX 7 won't restart unless I change the user it runs as

["mikechyu"]

We've had this happen to two servers now and I'm just waiting for it to happen 
to the third.

 Afte a while, Coldfusion MX 7 will not restart.  If we change the user the 
service runs as to "Administrator" it will run, but now longer under the 
"SYSTEM" user it was always running under before.

 On;y after hours of working on this and upsetting a LOT of clients did we 
discover it would run by changing the users.

 WTF.  Anyone know why it seems that all of our MX 7 installations eventually 
get to this point?

 Thanks

 Mike