Sorry, I did see one other difference, but this was in the html source of the reports.

In the working report I see this bit of code:

</div><div id="ctl31_ctl09_ReportArea">

<div NewContentType="Microsoft.Reporting.WebFormsClient.ReportAreaContent.None" ForNonReportContentArea="false" id="ctl31_ctl09_VisibilityState" style="visibility:none;">

<input type="hidden" name="ctl31$ctl09$VisibilityState$ctl00" value="None" />

</div><input type="hidden" name="ctl31$ctl09$ScrollPosition" id="ctl31_ctl09_ScrollPosition" /><span id="ctl31_ctl09_Reserved_AsyncLoadTarget"></span><div id="ctl31_ctl09_ReportControl" style="display:none;">

<span></span><input type="hidden" name="ctl31$ctl09$ReportControl$ctl02" /><input type="hidden" name="ctl31$ctl09$ReportControl$ctl03" /><input type="hidden" name="ctl31$ctl09$ReportControl$ctl04" id="ctl31_ctl09_ReportControl_ctl04" value="100" />

</div><div id="ctl31_ctl09_NonReportContent" style="height:100%;width:100%;">

but in the broken report I see this:

</div><div id="ctl31_ctl09_ReportArea">

<div NewContentType="Microsoft.Reporting.WebFormsClient.ReportAreaContent.None" ForNonReportContentArea="false" id="ctl31_ctl09_VisibilityState" style="visibility:none;">

<input type="hidden" name="ctl31$ctl09$VisibilityState$ctl00" value="None" />

</div><input type="hidden" name="ctl31$ctl09$ScrollPosition" id="ctl31_ctl09_ScrollPosition" /><span id="ctl31_ctl09_Reserved_AsyncLoadTarget"></span><div id="ctl31_ctl09_ReportControl" style="display:none;">

<span></span><input type="hidden" name="ctl31$ctl09$ReportControl$ctl02" /><input type="hidden" name="ctl31$ctl09$ReportControl$ctl03" /><input type="hidden" name="ctl31$ctl09$ReportControl$ctl04" id="ctl31_ctl09_ReportControl_ctl04" value="100" />

</div><div id="ctl31_ctl09_NonReportContent">

Do you see how the working report has style="height:100%;width:100%;" for the last div, whereas the broken report is missing those attributes? This is the location of the 'ctl' div ids that I have seen referenced in the fixes based on CSS, but I don't know what would be causing that difference between the reports.

Thanks again,

webrunner