I just bought a Ibanez SA32FM with the True Duo bucker but even when the pick up is in humbucker mode i still get lots of feed back when im not playing.
This does not happen in the neck pick up.

What could be wrong?

Are you too close to the amp?
Dunno if this makes a difference, but are there any electrical objects around you when you play?
Im no closer than i am normally with other guitars.

I think it may have something to do with it being a coil split

but usualy you shouldnt get feedback in full humbucker mode