more RSTS/E strangeness....

ooh no it's that Hudson fellow again. Someone take his PDP 11 away, he don't know how to use it.. There is a problem when I am logged to my RSTS/E(simh) in as [1,2]. I recently have been trying to edit my tty.cmd file, I am using teco, I edit the file making a change, I save the file with the teco command ex$$, ($=escape). Once out of teco I type tty.cmd to verify my changes. I then use pip to copy tty.cmd to tty.bak and tty.old . Then I shutdown RSTS/E and restart - to make sure my changes work. On reboot RSTS can't run tty.cmd - claims it can't even find it. Of course the startup procedure stops at that point so a lot of other things don't get done (loading error managers, spool managers, batch manager and defining CCL are the main things) While in this state directory (run $direct) cant find tty.* none of the tty files I copied remain.. I even tried saving a file named cmd.tty and it vanished too. I type a new tty.cmd from scratch (using teco or pip) and reboot and now **all** of them are back. 8^P What's up? I think I need a nice RSTS/E boot camp.