Hi John, many thanks - I'll do that. One other thing, I don't know if it is or not, but IF the root folder is set up as a web app, would that interfere? FYI, there is no web.config in the root and certainly no app installed there, but ASP.NET is enabled for my site obviously.

John, I'm running one DNN instance, but with three IIS website instances pointing to the same DNN folder. I have it set up this way in order to provide separate SSL encryption certificates for certain portals.

So, it seems that as a result, I'm getting this error:

AssemblyVersion: -1
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL:
AbsoluteURL:
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider:
ExceptionGUID:
InnerException: Add failed. Duplicate key value supplied.
FileName:
FileLineNumber: -1
FileColumnNumber: -1
Method:
StackTrace:
Message: System.ArgumentException: Add failed. Duplicate key value supplied.at Microsoft.VisualBasic.Collection.Add(Object Item, String Key, Object Before, Object After)at DotNetNuke.Services.Scheduling.DNNScheduling.Scheduler.CoreScheduler.AddToScheduleInProgress(ScheduleHistoryItem objScheduleHistoryItem)at DotNetNuke.Services.Scheduling.DNNScheduling.Scheduler.CoreScheduler.WorkStarted(SchedulerClient& objSchedulerClient)

Is there a solution that I can try?

Steve