[LAU] qsynth: errors

Hi, When I want to open qsynth on Ubuntu while jackctl is already running I'll get these messages: - 18:10:39.164 Qsynth1: Loading soundfont: "/home/japke/Muziek/Soundfonts/VivSndsR2.sf2" (bank offset 0)... 18:10:39.238 Qsynth1: Creating audio driver (jack)... 18:10:39.273 Qsynth1: Creating MIDI router (alsa_seq)... 18:10:39.274 Qsynth1: Creating MIDI driver (alsa_seq)... 18:10:39.306 Qsynth1: Failed to create the MIDI driver (alsa_seq). No MIDI input will be available. fluidsynth: prog 0 0 - fluidsynth: prog 15 0 15 JACK tmpdir identified as [/dev/shm] ALSA lib seq.c:935:(snd_seq_open_noupdate) Unknown SEQ timidity++ fluidsynth: error: Error opening ALSA sequencer 18:10:43.195 Qsynth1: Creating MIDI player... 18:10:43.201 Qsynth1: fluid_synth_program_reset() 18:10:43.257 Qsynth1: Synthesizer engine started. 18:10:43.292 Qsynth2: Creating synthesizer engine... 18:10:43.416 Qsynth2: Loading soundfont: "/home/japke/Muziek/jRhodes3.sf2" (bank offset 0)... 18:10:47.231 Qsynth2: Creating audio driver (jack)... 18:10:47.267 Qsynth2: Failed to create the audio driver (jack). Cannot continue without it. - JACK tmpdir identified as [/dev/shm] could not attach as client fluidsynth: error: Jack server not running? 18:10:49.069 Qsynth2: Destroying synthesizer engine... 18:10:49.096 Qsynth2: Synthesizer engine terminated. 18:10:49.303 Qsynth1: fluid_synth_set_gain(1) 18:10:49.323 Qsynth1: fluid_synth_set_reverb(0.2,0,0.5,1) 18:10:49.342 Qsynth1: fluid_synth_set_chorus(3,2,0.3,8,0) - Can somebody help me with this? regards,