>>Whenever I attempt to change the Zoom setting when Previewing 2 particular Reports with SET REPORTBEHAVIOR 90, see a brief flash of the re-scaled Preview followed by the Development Environment crashing. Other Reports work correctly and this does not occur in the compiled versions running the same 2 reports.
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>>I looked at the Windows Error Log and it appears to be an issue with the NTDLL.DLL file in the Windows/System32 folder. Stumped as to why this is happening for these 2 reports.
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>You could open the reports as tables and remove any instances of CHR( 0 ) that may be present in character or memo fields.

Hi Al
The problem I see with this, the frx itself could rarely be the problem. The report as such is run. This is SET REPORTBEHAVIOR 90, and I think Marshal will use a standard approach. So all pages are stored to memory before calling the preview.
The first page is rendered from memory stored GDI+ image. What fails is listeners OutPutPage re-rendering the same image from memory to the canvas in a different scaling. (it is unproven if rendering the very same page on same scale will work.) It's more like the complexity / size of the GDI+ image(s).
I have now idea how complex the stored GDI+ information is, if it holds layer like stuff like it is used while creating the picture, or if only the resulting bitmap exists.