Terry,

Most lakely a faulty printer driver causes this problem. Take a look at FIX: Divide by Zero Creates Err with Third-Party Print Drivers mskb #Q183522 and PRB: "API Call Caused an Exception" Error Message with Third-Party Print Drivers mskb #Q253356.

>I have a widely distributed VFP 5.0a app that
>has several databases that are accessed from
>a menu. One of the databases has 10 tables
>contained in a DBC and is accessed via a form
>with a 10 tab Pageframe on it.
> Occasionally, when someone prints a report
>(which uses the built-in VFP report writer),
>and then opens this 10 tab Pageframe, a windows
>error is generated saying that VFP500.DLL has
>caused a error at so and so and that the program
>is being shut down. The report prints without
>error. The error occurs when the form with the
>10 tab Pageframe is opened. At some locations,
>this is very repeatable.
> Any ideas?