I researched the configuration of this module more and found that the error I mentioned prior was most likely due to misconfiguration of the module's options. Now the chart visualizer will successfully create and display the chart initially. However if the report re-runs (re-queries) the chart is not updated on the server and the error "A critical error has occurred. Access to the path (chart path) is denied". This site is hosted on a shared hosting server with only medium trust for .net assemblies so I figured the issue that is described in the forum post linked below was occurring. As a result I downloaded the Zedgraph source project, modified the assemblyinfo.cs file as recommended and rebuilt the project to generate new .dlls. However even after uploading the new dlls to my site's bin directory, and recompiling the DNN application, the same condition is still occurring. I have no idea now what may possibly fix this solution (except maybe full trust for .net assemblies), which unfortunately is not possible at my current hosting provider. If anyone has any suggestions or access to Zedgraph assemblies (v. 5.1.1.428) which have medium trust enabled (in case my were not formed properly) I would greatly appreciate it.

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