Has anyone from Fusion Charts weighed in on this yet? I am having the same issue.
I am using the setDataURL method. I have tested this where I added a sleep command to my data XML page to intentionally simulate a slow data page. On my chart page, the browser freezes until the XML is returned to the chart.
I am using Firefox 3.0.10 and IE 7.
It seems like the call for the XML is blocking other processes. Is there a way to make this call asyncronous so as NOT to lock the browser?