Mark,
I assume you've verified that the FRX/FRT has not been changed/damaged if the reports are not bundled into the EXE.
Perhaps the FONT itself has been damaged or is missing.
>A program that has been running for years suddenly refuses to print any line in the body of a report form that has a field or label that is set off with a bold font. The text in bold font appears, but the rest of the line is simply missing.