Hi friends, I just updated my mandrake 9.2 to 10.0 official and used the kernel.sds of thacs, everything is fine apart the fact that I used a terratec Aureon usb 5.1 and that I can't used it normally with jack, I put jackd interface: hw:0 frames/period: 2048 sample rate : 44100 buffer : 2 audio: duplex no memory lock input channels2 output channels6 I start jack and then xrun callback go over and over without end and there's no possibilities to start an apps (ardour, PD and so on...) And when I put 2input channels & 2 output channels it start without problems... but that's pity as the Aureon as 6 output channels to not used it :-( did someone report that problems, I changed the config of jack in qjackctl in different combinations but still the same scenario... thanks for your help!! juto