I got Edirol UM-880 and have had no problems. Actually AN1x even works very
well with my CS6x as they share similar CC parameters.
>the AN1x has some strange method of sending "packets" that require some
>acknowledgement when doing sysex, and if the MIDI interface isn't quick enough
>in providing a response, then ugly stuff happens.
>
>Maybe you might try MIDIOX (freeware) and analyze the data stream for any
>quirks.
// Jouni
--
Jouni Airaksinen // www.markvera.net
www.spacesynth.net the place where spacesynth scene meets!