Hi,
Unfortunately, I have the exact same problem but your solution does not apply in my situation. My ChartId value has no special characters.
This seems to be new behavior for Fusion Charts, since I had just tested this misbehaving chart when we upgraded to version 3.2.1 a few weeks ago. Perhaps a Flash update caused the problem?
This problem affects IE8 users in XP or Win7 when not running in compatibility mode. Forcing the chart renderer to javascript displays the chart as expected (ugly, but it works)
I'm circumventing this bug by forcing all IE browsers to javascript rendering.
To FusionCharts staff: when can a patch be delivered to fix this problem?
A live version of this chart can be viewed at http://system.netfile.com/Sunlight/ if you are interested in viewing the problem.
Best Regards,
David Montgomery