This is why your application should always have a "dump version string"-button, conveniently embedded together with your "report bug" button which doesn't have to be more advanced than simply opening your email-client or forward you to a webpage. This form should be free text but pre-filled with the version string pasted at the top and contain headers that invite the user to fill in the rest, such as Reproducing: <write what you did to cause the bug>. 100 different drop-downs makes nobody happy.
