Yep! that's it! The crazy thing is that all of my other tomatoes are growing well - some I started from seed. The two that died are a new hybrid (Big Daddy) & it may mean that the whole slew of them may have been infected at the nursery. I am glad they were not even touching my other tomatoes.
Thanks gixx & Rainbow!!
Eat, Sleep, Garden and ... then Eat What You've Grown!