Mini-graph

Sounds like you may need to update your JAVA - see if the below helps and let me know if still some issues.

This page has FAQS and Download instructions etc. Shortcut to Java Download page by Sun Microsystems - http://www.java.com/en/download/windows_ie.jsp

Although most new operating systems autmatically have JAVA configured, if you get the red 'x' where the graph should be here is what to do:

If using windows explorer and XP operating system, make sure its updated then right click on icon and go to internet properties>advanced and then make sure you have the box under 'java sun' checked and under 'microsoft vm' have JIT compiler for virtual machine checked.
 
If have another operating system, see if above properties are configurable in your browser settings, IF NOT and you still get an 'X' where the graphs should be then you will need to download some Java via the above link.