Some of the portlets in the Dashboard rely on plug‑ins or third-party software to display properly.
Portlet charts can be rendered in 3D by using the Flash format. However, the Adobe Flash* player does not support a 64‑bit Internet Explorer (IE) browser, so when you configure any charting portlet to display Flash graphics, the charts do not display properly in 64‑bit Internet Explorer.
You are prompted to install the Flash player. However, if you manually install the player and restart browser, the 64‑bit Internet Explorer still asks you to install the plug‑in.
Refer to Flash Player support on 64‑bit operating systems for more information on this issue.