Ugh. That sounds like the same thing that bit me. There's definitely a screw missing, but it doesn't look like anything sheared off or stripped itself loose. (The hole it should go in doesn't have any little metal crumbs or anything hanging off as if a screw were pulled out...)

So does that mean the empeg should be ok if I put another screw in?

I'm *very* nervous about plugging it back in and smelling that lovely tang of burning electronics.

I'm perfectly capable of opening it up and checking it out, but I'm not sure what to look for, other than things that have obviously come loose and are flapping about.