Re: metal inserts between panes of glass have slipped
You call a glass company to come out, measure up a new window, make a new window, and install it for you.
there is no "repair" of dual pane windows, you can only replace them. If the window isn't fogged due to a broken seal, then I'd be inclined not to worry about the aesthetics of a trim piece that has fallen. If you just can't live with it, which is totally understandable, then you will have to have it replaced, the cost of which will depend on the size and specs of the window, and whether you can do it yourself or have to hire the whole thing out.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!