I am renting a Canon Speedlite 580EX II.
I had the pull-out Wide Panel (aka diffuser) out and, and when I went to push it back in I noticed that it was very, very loosely attached to its little black bar. Then, it popped off in my hand.
So, I can put the panel back on its mount fine, with the little spring in its notch and the little nubs on the ends in their holes, but it still feels really loose. I can push the panel back into the flash unit, but it pops off when I pull it out again.
I see in the manual that it warns me not to use excessive force (which I wasn't...) or the panel can detach.
So, can anyone tell me how to re-attach the panel so that it stays tight? Nothing appears to be at all broken, as best I can tell.