Just new to this forum, so three completely different questions:

1. I get an error saying I am not authorized when trying to post a new topic to the StrataFrame Application Framework forum. Why is that?
2. We are using the StrataFrame business objects within a WCF web service and we are creating only one instance of that service. Are the business objects thread safe in this scenario?
3. My manager would like to see if we can log all changes made to fields in the database. So for instance: field myField was changed by user xx today from old value 'Something' to new value 'Something Different' . Can we track those kind of changes through the property setters on the business object? I know one option is hooking into the events fired when a property is changed, but I was wondering if there might already be a built in solution for this.

Thanks!