[linux-audio-user] Muse with M-Audio Quattro

Hello, I am having some problems getting muse to work with the USB M-Audio Quattro. I'm mentioning the device because I am not 100% sure the problem is due to MusE. It could be a Quattro config problem. Anyway, playback seems to work fine (the song position pointer is moving) but no midi comes out of the outputs. The error messages: MidiAlsaDevice::putEvent(): midi write error, returns -19 expected 28: No such device ...and at startup of muse I get: 'WARNING: Cannot lock memory:: Operation not permitted' I'm using Gentoo with 2.4.22 kernel and alsa 0.9.6 compiled from source. Muse I installed as ebuild from Gentoo. Does anybody have experience with this setup or know what the problem might be? Many thanks in advance, Jelmer