>Ok, many thanks for your help
>
>>My guess is that FoxCharts and ctl32_progressbar as stepping on each other somewhere in the area of binding to Windows messages. You'll have to dig deeper to resolve the problem.
>>
>>>I'm using the latest version.
>>>


Robin, just for an experiment, I'd like you to make a change in a single property in FoxCharts -
Please adapt the code below to your case and tell me how it goes !

Thisform.FoxCharts1.ChartCanvas.RenderMode = 1 && This will force saving the images on the disk, avoiding the memory stream usage

Make sure to change that property value before calling the "DrawChart()" method !

HTH

Cesar