Copper grease on the back of the pads (NOT the side that touches the disc ) - solved it on my car.....
Mike
Edit: Great minds Keith - Whilst you've got the pads out - check that the pins are smooth & free from corrosion - if they're not then clean them up with some emery or wet & dry......
wasnt there a thread about this on visordown(sorry for swearing)
something about wd40????? this and brakepads combined apparently have the desired affect??:grndevil :grndevil :grndevil