Thanks for the reply. I didn't try other styles.
We are running UBBCentral - Zen as default. I just tried ubbthreads stock and got the same overlap as Zen. I tried a couple Ventura Open styles and they don't show that overlapped.
An example thread showing avatar/text overlap in vertical phone mode:http://www.oldgas.com/forum/ubbthreads.php?ubb=showflat&Main=118009&Number=695915#Post695915