I'd suggest deleting the app and then re-downloading from the app store, just to make sure you get the newest version. There was a bug with version 2.3.0, which we fixed in 2.3.1.
That's not to say you haven't found a new bug with your particular setup, but we haven't heard any other reports or found problems in our internal testing.
Is there a reason you haven't updated to iOS 4.x or even 5? iOS 3.2 is pretty old and there's been a lot of great bug fixes and features added since then.
If you'd like to send us a crash log we could dig into this further. Just email it to us at email@example.com
Here's how to find the crash logs: