Ive sorted the problem of no-signal sent to the sub when using any pro logic setting.

I went into basic set up and set subwoofer to yes. This is in spite of auto setup recognising
the sub and configuring it.

Strange as the manual says all that needs to be done is run auto setup. Just not the case though
is it.

Any ways I have sub woofer on all prologic settings now but it still locks ha ha