It asks me for a PID, even though it didn't in previous versions. If I don't provide one or if I choose "other problem", it closes saying that I need a PID. If I put the symptoms in the terminal, it crashes saying there is no package matching the description.
I have several bugs that don't affect any of the options provided by "Ubuntu-bug" hence I would need to file it under "other problem".
You can type the package name if you think you know what the bug is about. For example, if its nautilus causing the problem type
in your termial or by pressing Alt+F2. Or if it is firefox then type
Hope this helps.