A friend and fellow quilter, Teri, pointed me to a blog today. OMG... I wish I was home and not traveling. CJ has a post on threading the Bernina 830 properly, so you don't have all the tension problems... From the comments it appears that she has solved others problems more than once. So I sure hope it solves my problems. It makes sense, if you don't have the thread in all the guides, no wonder the 830 doesn't register the thread properly at times, hence the tension is off.
I will give it a try, when I get home next week. For now, I am in Miami helping my daughter, Raven, get settled in her new apartment. She starts her first real job on Monday, July 6th!