Hi to all, Thanks for the answers ;-). I've installed the 2.6.14-rc4 kernel with the latest Ingo Molnar's patch (patch-2-6.14-rc3-rt2)... no, one moment. I've just checked and just today Ingo Molnar has release lots of updates reaching 2-6.14-rc3-rt6. By now I'm still running the rt2 patch and I find it very good. I can start jackd at 32x2 @ 48000 in playback mode with my audigy 1. I get some xruns, but none only playing a session with ardour. I use 128x2 in full duplex for more robust performances. I've not stress tested the kernel so far, but it seems very good. I think I'll try the new patch soon. Best Regards, ~ Antonio