Crashes caused by 'open' comments

I have had several crashes while I am writing a comment in a procedure. It occurs only if I begin the comment with /* and have not yet entered the closing string for the comment, */. It occurs after some time has elapsed, perhaps a minute or more, but that I am unsure about.
I wonder if PanX could automatically generate the closing string for the comment? That would be helpful. I.e., I type /*, PanX will automatically add */.