I've still the problem.
SESSION END BY SERVER
An unexpected error occurred on the server. If you continue to receive this error you can post a message to our public forums at http://www.tableausoftware.com/public/community.
VizqlException: Session does not have sheet with sheetid: ;
2013-05-22 09:29:53.331 (UZyQEQq@ATYAAASskf4AAAAV,0,1)
Can someone halp me to understand?
See image below
Thanks in advanced
I suppose that the problem is caused by the site server software tableau: If you see the site http://www.tableausoftware.com with Internet Explorer icon is displayed for compatibility, but it does not appear when you point directly to the page of the graph.