I just had a pane of glass repaired in an aluminum framed, single-pane, single-hung window. The glass is set from the inside and held against the outside frame by a plastic trim piece. There is a trim piece on all four sides of the pane, and they snap into the inner window frame. This is a fairly common configuration for windows down here in FL. The problem is with the plastic trim pieces. They become brittle over time due to UV, and the repairman busted them up when re-installing (he did his best). Does anyone know where I might find some replacement pieces? I'd contact the window manufacturer if I knew who it was (assuming they were still in business). I would think this was a somewhat common problem. Thank you in advance for your help!