24" Imac: How to put stand/foot back on?

Hi all, I've had my 24" imac wall mounted for a little while and I want to go back to having the stand on. The only problem I'm seeing is.......how do I put it back on?

It looks like there's a key in the center for the stand (on the arm mechanism inside the imac) but every time I try to get it to latch I hear it give before the holes are exposed (to get a screw in to hold it in place.) What am I doing wrong here? Shouldn't the mechanism inside the imac be able to be pulled out?

Ah solved my own problem. Turns out the arm mechanism inside the imac should have stayed locked outside it, instead it went back in somehow. So I made a little tool to pull it out again (hooked it around the peg/key and pulled hard) then had to push the lock/unlock mechanism up with a thin card at the same time. It finally locked on the outside so I could put the stand on again.

What a pain.

/thread