Problem while exporting in MAPI

Hello everyone,

I m repeating my problem.
I am using crystal report v8.5.
After running report successfully, when I click on the export icon & select "Acrobat Format (PDF)" as Format and "MAPI" as Destination, dialog box appeared which ask for page range selection. But after that nothing appeared and i couldn't export report.
I m using "outlook express" for mailing which is configured properly.
Please help me out?

Thanks,
Jasafter setting outllook express as default mapi client this problem gets resolved