Hi, when starting JACK from the command line on an USB Card Terratec Aureon 5.1 USB using /usr/bin/jackd -v -R -p64 -dalsa -dhw:3 -r48000 -p512 -n4 -P -o2 everything works well. But as soon as I use Qjackctl to control JACK with the same parameters then I get notches every 3 to 7 seconds. I'm running jackd version 0.99.0 tmpdir /dev/shm protocol 13 ALSA Driver Version 1.0.6 Linux vanilla 2.6.10 with the RT-LSM-patch applied. Anyone got a similar problem? Thanks & best regards ce