oliverdarling

Hi, I was wondering if anyone can help-my Toneport UX8 has been working fine ever since I got it, about 4 years ago (2nd hand), but now all of a sudden outputs 1 to 4 have stopped sending. They are sending in the System Preferences window, but are not producing an analogue output. Channels 5-8 are working fine. I've tried firing up the Monkey for any possible updates, but I think it's all ok. Could it be a physical disconnection inside the unit? Thanks, Oli.