I have been using DDN from version 3.xx through the various versions to 4.02 and must say that the overall operation of these versions has been met with a high level of satisfaction. However one issue continues to destroy the user experience of each version that I have failed to resolve.

The following message is often displayed when mainly for content authors but some times by visitors to any of the implementations of DNN.

A critical error has occurred.
Object reference not set to an instance of an object.

From a user point of view this message frequently comes up when they click on any module's edit text, and from my own testing I have sat and clicked many times until it finaly goes to the edit page and everything contiunes as normal until you move to another edit function.

I have impliementations on a hosted site running Windows 2003, local installed on my network and standanlone installs running XP. All exibit the same behaviour. You can have a completely smooth experience or you can have a session that you just spend hours trying to get away from the error.

My standalone install has no added modules and is basically out-of-the box, I have tried all of the installtion methods including the startup kits.

I have tried implementation where SQL Server 2000 is on a separate box and also on the same box (looking for latency issues).

Thr only common factor that I can draw on is that all these edit pages use the Edit control.

If anyone has any experience in this area then I would welcome some assistance.

Cheers

Craig

Outback Dot Net User Group Northern Territory
Australia