Wolfgang Lonien wrote: > >>The lags and timeouts (xruns) start being worse when the screen starts > >>scrolling in Rosegarden/Muse. > > [...] And the USB ports on that particular ASUS laptop are > used for a Logitech mouse (because I hate these touchpads) and the > MidiSport 2x2 interface to get in my MIDI events and to get them out to > the Sound Canvas again, which actually plays the whole stuff. Do the lags occur when you connect the MIDI input port directly to the output with aconnect? Regards, Clemens