Unable to adjust subreport width

Hello,

I have a subreport inside of my report. I recently changed the page size to tabloid and adjusted the size of the subreport by expanding the subreport object on the main report. However when I goto edit the subreport, the width within the subreport does not reflect the width of the subreport object on the main report (which stretched the entire width of the report). Is there a max width for subreports. Am I missing something? Please help! I would attach a copy of the report but it doesn't look like you can attach .rpt files, which seems odd considering.