So my phone was freezing up and I pulled the battery, I then restarted and the BBM icon had disappeared. It is still listed in the applications list under Advanced Options, but I can't find it anywhere. It isn't hidden, because when I click show all it is not there.
Someone said it might be in a folder, but I don't have any folders I don't think! All my conversations are no longer showing up on the 'messages' page.