Thank you for the report, but I can't reproduce it.

just tried it on a new install .0.9b2 and it works

from what is see here http://www.boonex.com/trac/dolphin/ticket/2719
no dolphin files are edited so downloading beta .0.9.b2 and uploading the tiny_mce folder  to 7.0.8 should work  but for some reason it's not.

 It maybe that there are some cache files left from the old version.

disregard this post, it works fine, after clearing the browsers cache lol...