Crystal Report export issue

Hi All,

I'm preview crystal report from access 2010

(1) Click crystal report export button in the crystal report viewer screen. In the upcoming popup, select the report format and click export. File exports successfully

(2) Now without closing the crystal report viewer page, and preview report again or change new report click the export button again, select a report format (same or different). Click export. Now the bug is the file is not exporting and my access restart. I can export only first time to preview and second time my access is restart and can't export

Please help.