strange tuner behaviour from head socket

[artisan]

at last nights gig i set my new rig up just the same as i did at my last gig but for some reason my tuner wouldn't work correctly when used from the tuner out jack on my Shuttle 6.2.
every time i tried using it the needle just shot to the far right of the on screen scale,i tried different leads but this made no difference at all.
when i plugged directly into the tuner it worked fine.
so is m head faulty ?
have i set something up wrong ?
am i a tit ?

[xgsjx]

Sounds like you have a short. Try a different cable from the tuner out to the tuner.