First time poster here and I thought I'd finally jump to a leaked OS .132... unfortunately I'm not able to backup so that's kinda on hold.
I do get the Error backing up database(s) message sure and I've tried clearing the browser cache both on my bb and in DM. It fails specifically when it gets to backing up the WTLS Options, maybe that's just the last bit I don't know. I've even tried clearing out that database under DM>Backup>Advanced unsuccessfully. Also there are no entries in that database according to DM.
i am having the same problem too.... even when i go into the add/remove application, I can't see the core software. i can only see those 3rd party software installed.