>Is there a way I can check to see if the main form was ever loaded prior to trying to go to it with my DO FORM command? If it was not loaded, I will load it with DO FORM main.scx otherwise, if it is aleady loaded I don't want to load it again. I will skip loading it.

if type('main') = 'O' and not isnull(main)

You can insure that main is teh varaible the form loads in with the NAME clause:

do form main.scx name main