I'm using VFP 7.0

I have a form with a web-browser on it.

Frequently (but not always) all the buttons, optiongroups, editboxes lock up on the form.
The buttons won't click and I can't scroll the editboxes.
The Optiongroups still trigger the Click() and the value changes, but the display still shows the original value.

I can still change pages on the web-broser, change pages on the pageframe, click on images, close the form.

Sometimes I can get it to fix itself by changing pages on the web-site, but usually not.

So far it happens only when I've navigated to one particular web-site.

Is there any way that the content of the web-site could affect my form?

Any other ideas?

TIA