I'm afraid I'm not experiencing any such problems - and that's what is taking us long to get to the base of this problem. Ideally, there shouldn't be any co-relation with chart rendering and the number of visits on your server, as the chart is generated at client side. The SWF and XML gets downloaded the client and then the chart is rendered. So, I'm not sure if that's a load problem. And, in fact, FusionCharts is being used effectively on a lot of websites (and in their home pages too) that get multi-million hits each day.

This has to be something related to JavaScript and timing of data being loaded at client side. If you're getting data from server using JavaScript and then providing it to chart, the time lag here could differ, and this is what could crash. Can you please put some checks on this and see if you get a pointer here?

Thanks,
Pallav Nadhani
FusionCharts Team