I inputted drum sounds using a usb connected keyboard.When recording I used asio4all with very low buffer size to get rid of the latency.On playback I increased the buffer size to get rid of any glitchy sounds.I then wanted to record live vocals.I have a lexicon usb audio interface with its own asio drivers. I used the lexicon asio driver selected in the asio programme settings page but on recording there was no sound from the drums or metronome click.It also gave me an internal error message and says mio error after trying to record.Because I'd recorded the drum parts using asio4all I thought this must be the problem.The lexicon shows up in the asio4all display so I tried to record with asio4all and the same thing.I then opened an empty new arrangement  and tried to use the lexicons asio drivers and it recorded perfectly but with no metronome click.Basicaly mm17 recognises the lexicon and records with it well on its own using lexicon drivers  but doesn't record vocal with what I've previously reorded  using asio4all.I know about the playback while recording setting in audio record mode but this doesn't work.I like mm17 but this has me stumped.Any help appreciated.