charts are appearing outside tha report page

dear all,
i am using two subreport for display two different bar chart.
when i am calling this subreport to a main report then chart is displaying outside the report page and i need both chart to be displayed side by side. but is is showing one below other.but in main report preveiw it is showing as disired.... plz guide me,

thanks in advance

Thanks With Regards
Irfan Ahmad