>STEP brings it up the first time only, but doesn't enlarge a minimized debug >window thereafter...

That's strange. The only reason I still use STEP in 6 is because I don't
have to enlarge the debug window each time. It always pops up when STEP is encountered.

>In any event, STEP can be a liability, so I avoid it now. I forgot about one in >an obscure place in an app once, and of course a user got a "feature not found" >error - oops :)

Yes, that's why I run a string search for SET STEP ON across the project directory before creating a release build.