I'm getting the following error at the point READ EVENTS is executed.

"field" phrase is not found (Error 1130)

My code previous to this is:

PUSH MENU _MSYSMENU
DO AppMenu.MPR
READ EVENTS

The menu displays OK, and the menu pad I choose executes the code "do form xyz". The init code of the form works (disables certain controls - I traced through it), the form displays, then the error message above pops up when READ EVENTS is hit. The debugger doesn't seem to help.

Has anyone experienced this error before?