When you report an issue, it would be incredibly helpful if you could please include the following information:
1) What version of Boxer do you have installed? (Android Settings->Apps->Boxer)
2) What version of Android are you running? (Android Settings->About Phone)
3) Exact steps to reproduce the problem if possible. If you encounter a crash try to reproduce it again doing exactly what you just did. If you can nail down exact steps those help us tremendously
4) Was the device in portrait or landscape?
5) Did the issue happen on a phone or tablet?
6) Is the device set to a non-english locale?
7) What type of accounts do you have set up?(Exchange/Imap/Pop3)