If your door is sticking, sagging on one side, or the opener strains and reverses, on a house from the late 1990s that's usually wear, not a structural problem with the opening itself. Rollers and hinges from a 1997-era install are closing in on 30 years of cycles, which is past the point most manufacturers expect from the original hardware. Track misalignment shows up as a door that rubs on one side near the top - on these openings it's almost always the track brackets working loose from the jamb over time, not a settling foundation. Panels from this era are often steel with a thinner gauge than what's sold now, so a hard dent on one panel can throw the whole door's balance off in a way it wouldn't on a newer, heavier panel.