Notebooks for iPhone Answers

Hello: Let me first say that I really love this app. It's the best notebook app available, and I've experimented with many of them.

I sync my notebook with DropBox. Every now and then when I go to sync, I press the action button at the top, (it doesn't matter if I'm in a particular notebook or at the root "Notebooks") and before I even get the action menu where I could select Sync-DropBox, Combine Notes, Info, etc. the app just closes unexepectedly. It doesn't happen every time, and it's only a minor inconvenience, but I thought I would bring it to your attention and see if this is a known issue and/or if you're working on a fix for it. Thanks.