[LAU] Rosegarden crashes when recording externel audio

Hey all, I'm running Debian testing and I'm trying to record external audio from my yamaha keyboard via the mike-in jack. While I can hear the sound and see the audio meter jump in rosegarden, when I record some audio and then press 'stop', rosegarden crashes with: http://pastebin.ca/1615355 Any ideas what's going on here? On a slightly related note, when I connected capture_1 to my system output in qjackctl, there's a lot of annoying noise and random blips and bleeps. Is this a silly integrated sound card related problem (i.e I should buy something better) or what? Oddly enough, I don't get any noise or blips/bleeps when just sending the keyboard from mic in to my speakers without connecting capture_1 to the jack output. Thanks, Andrew Coughlan