The video driver. Try to install the latest video driver or use generick one.
The ActiveX controls. Either one of controls is flaky or interaction between them causes the error.
>I have a VFP 8 application running on a P4 2.8 Celeron computer. > >At various times throughout the course of a day, VFP will crash during a form.Paint event and error will get logged to the vfp8err.log file. > >This form, is a standard base form with some ActiveX controls on it, and gets used very frequently, as its a user login form, where multiple users log in and out on a single machine. >