Sound Problem

My 2500 will only output in mono. I have no idea why it started doing this, but if anyone has any ideas as to why this would be please let me know.

Bad cable? Which out are you speaking of?

the headphone out as well one of the stereo outs.
it just started doing this.

any ideas?

check the pan settings.
check the sample isn't mono. ie test other samples.
try recording your own sample and seeing if that plays in mono as well.

my left output died, but if it was the output then the headphones would still work.