Hi Nadya,
In looking at the value for _screen.activeform.top in the debugger I noticed that the value was -64 instead of 0! Somehow the height and width on my form had changed from the values I had previously set to 790 x 570, which doesn't fit inside the main window. I'm not sure how that happened, because I don't think I changed those values for height and width. Anyway, when I changed them back to 750 x 500, my form came up perfectly, including the title bar.
Thanks everyone for your help. It definitely took a combination of your suggestions to catch this relatively simple problem :)
Dorisa
Dorisa Call