Korg O5r/w, in the last two weeks it's begun to produce hanging notes. Does anyone have any suggestions why this is happening, and how to I can resolve the problem..

It doesn't matter whether I'm using the keyboard or midi guitar as Mother!, the outcome is the same. When I switch the Korg off & on again the notes stop hanging.

I'm using it through Cubase on an Atari. It's being driven directly from the
Atari parallel port - for the extra midi channels. It is the only unit
attached to this port.

I have been using this system for some time now and was working perfectly until recently - does this have anything to do with the Y2k scenario? Does the unit require an internal battery change?

All help appreciated. Thanks in advance.