Fred,

>The documentation mentions that you should turn off Session State to improve performance. On pages that are not using security, I have tried that with the following error:
>
>[NullReferenceException: Object reference not set to an instance of an object.]
> OakLeaf.MM.Main.Web.UI.mmBaseWebPage.OnLoad(EventArgs e) +257
> System.Web.UI.Control.LoadRecursive() +47
> System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061
>
>Am I missing something?

Are you using localization on your web application? I recommend setting a breakpoing in mmBaseWebPage and seeing where it's hitting the exception.

Best Regards,