Hmmm... Does it happen consistently? In other words, do they close after the first "->" keypress or does it seem random? If it's random, how long on average before something happens? Also, you said you never get a crash message?
If you're interested, you can email me and we can do a remote debug session so I can see what's going on oveer there. Otherwise, we need to get the problem easily repeatable before I can hope to find the cause.
thanks,
andy