Hi all, I'm running Mandrake 9.1 with multimedia kernel and applications that come mostly from thacs RPMS. I have just download jack 0.80.0, qjackctl (great tool !!) and when starting jack with -R option I get the error message : "cannot lock down memory for RT thread". Even with this error rosegarden work fine when using only the wavetable synth of my sblive (no xruns, even under KDE, switching windows or doing other nasty things that usually cause xruns). The problem is that I cannot connect softsynth to jack (I get the same RT thread error), I have tried with ams --jack and zynaddsubfx. I have seen on list archive several users having the same problems but no clear answer on the reason of the problem .... Thanks, Christophe