Hi all, I have a problem to install the firmware-loader-0.5 for the MidiSport 4x4 I have found a hint at http://sourceforge.net/projects/usb-midi-fw/ that there is a problme with udev this is what I did: First I installed de firmware-loader-0.5 Then I created a new rule file in /etc/udev/rules.d named 13-Midisport4x4.rules with this only line. SUBSYSTEM=="usb", ACTION=="add", SYSFS{idProduct}=="1020", SYSFS{idVendor}=="0763" , RUN+="/sbin/fxload -s /usr/share/usb/midisport/MidiSportLoader.ihx -I /usr/share/usb/midisport/MidiSport4x4.ihx" now the MidiSport 4x4 is detectet, but the lights are flashing up and down. I get a kernel massage linux kernel: usb 1-1:device descriptor read/64, error -71 thanks for help christian