>Whether I run my form from the command line, Form Designer, run main.prg from Project Mgr or run the compiled executable I get this error. The debugger runs through the code in main.prg, comes to DO FORM, runs through the Init method for the form and comes back to DO FORM in main.prg with this error.
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>Does this have anything to do with the fact that I'm not using a menu? Help keeps pointing me to PROMPT and the only connection I can see between PROMPT and DO FORM has to do with initializing a menu. I'd appreciate any help. TIA

It's something that used with Prompt. Prompt clause references an unknown field. Check for "prompt" in your prg or form.
Cetin