Hi,
The PAM for the dashboard explains that MS-Office 2013 is sufficient and supports, but the recent experience from the user and developers, it doesn't works in the way of other versions. Please check my comment on the above link given by hari.
Dashboards 4.1 Xcelsius has stopped working Appcrash
Also please check the flash player version if its on version 14, then i would suggest you to downgrade the version 13. There are lot of issues still need to sorted out by SAP on the above points, still that we are running the versions just below the recommended versions.
Dashboards issues with latest Adobe Flash Player 14.0
Hope this Helps!!!
--SumanT