If you can provide me steps to reproduce this I would be glad to have a look.

>This sounds like the problem I have... I'm using a private datasession created with the session class. Is there any solution to it?
>
>>>What has happend with preview report in VFP7? There are so many bugs in it that it's almost unusable...
>>>
>>>1. Zooming in and out the preview report totally crashes VFP with a Fatal error: Exception code: C0000005, 4 times out of 10. Unbelivable, never happend before...
>>>
>>>2. Navigating with next, previous, last, first page in preview report gives the error message: Variable 'tablefield' is not found, very often. But never on the first page. It always appear when you click next or last. Why? If I close the report and preview it again it works almost every time... And if I print the report directly to the printer, no problems at all.
>>>
>>>Has anyone else experience the same problem? I have my application installed on about 15 computers and they all have the same problem, so it cannot really be a hardware issue.
>>>
>>>The application was created in VFP6, and all preview reports runned just fine there. But after the upgrade to VFP7, it's terrible.