See my attachment!
When I click on the button "open" I create a new modal window.
I click on the first textedit and then I press tab: the cursor moves on the textfield behid the window insted of the same panel.
A link won't work because it is to my company's support page. After doing some more checking, the ID I gave you is apparently some internal support ticket number. I did receive a follow-up on September 24, 2012 that the issue had been fixed and was available in the nightly build that is published. We are on 4.1.2 and the issue still exists, so I'm expecting it to work when we upgrade to 4.1.3.