I've had a problem with one of my 580EX II's being stuck to my 1D3 for at least the last month... I don't use that body much anymore (at all, ever) and just was trying to reconcile all my gear out of my floordrobe and discovered one of my flashes stuck to it.
By stuck I mean, the locky thing won't push in all the way, and the flash won't come off. I just can't get it to... I tried jamming a screwdriver in there, then hammering said screwdriver, but it seems to be well and truly stuck if I try to take it off that way.
I remember reading an easy fix for this around here a while back, but now I can't find the thread for the life of me.
Any ideas how to get it off?
Time's not a big deal, as I said I barely use this body or flash.

