>>Does anyone else have this problem?

Yes, the behaviour you described is duplicateable (if that's a word <s>).

If you check out InitializeComponent(), you'll see that in your #1, .BindingSourceMember = null. Add the view name, and .BindingSourceMember = "BizObj.ViewName". #3, .BindingSourceMember is gone - not set back to null or anything, the whole line is gone.

Just go back into the code and make the line that got wiped out - set .BindingSourceMember = null.

Mike