Hi Scot,

You mention that it happens on "one disk only", it sounds to me as though this could be a faulty disk. When the Computer Fair first came to our area I visited it and bought a pack of 50 Floppies for £25 (a very good buy in those days) and there were two that proved to be faulty, so I re-saved each good file to my keyboard and then saved to a new disk. It might be worth a try.

I had an horrendous and very stressful time with a faulty KN6000 bought several years ago, so I know exactly what you're saying about 'live' performances when this sort of thing happens.

Good luck!

Audrey