If you or anyone on the DNN project team would like to experience this behaviour first hand, please send me an email to mcalder(at)worxoft.com.  I'd be happy to create a temporary portal for you to play around in.

Marc

Just a note to update anyone following this thread on what is not causing the problem, and what may be related to the problem.

I turned off HTTP compression on my web server and all of a sudden - nothing happened.  I still got the same amount of whacky behaviour.  So that line of thinking has proven futile.

The one thing that I have found that has helped to temporarily reduce this problem is a bit heavy-handed.  If I run iisreset in a command window on the server, the behaviour of DNN settles down for half an hour or so.  I suspect that recycling the ASP.Net worker process would accomplish the same thing.

If you are also investigating this problem, please post your findings here.

Boy howdie, glad to see I'm not the only one with this problem. I swaear, after losing pages worth of content to disappearing Text/HTML modules, my hair just about can't take anymore.

Escalate away, cause this bugger is not only a major pain in the ass, but it's entirely unpredictable.

Serious DKP modules for serious DNN gaming communities.