Well, I work on Window 98 (My Company Policy), I use Dreamweaver MX with courseBuilder (4.1.12).

It did make dreamweaver "Corrupted" when I want to edit the Interaction. The Window still OK, so I only restart my dreamweaver. So after insert a Learning Object, I always Save First.

It's OK with me, cause it's the only way I could make some pratice in my eLearning Course.