Large Picture Window Popping Sound

What I thought was badly installed vinyl siding (contractor to condo association) causing a cracking/popping sound on heat up/down has turned out to be the the large double pane "picture" window (one side has a sliding pane that slides over the picture window part). I think the pounding during installation of the siding must have disturbed the window pane adhesive. If I press on the window pane from the inside, I get the popping sound. The window is original from 1992 (I think) when the condos were built. So I don't think a window warranty would apply so should I replace the window or get it repaired? TIA