madboost

Hey guys, I recently replaced my window regulator at the end of July because the wheel on the top of the regulator cracked and it cause the cable to go off track. Last night I had problems rolling up my window and the new regulator I bought broke in the exact same spot. Its covered under warranty so I'll be getting a replacement, but is there anything that could be causing this to happen, or is it just a coincidence? I recently had a used window put in because my car got broken into and I'm wondering if the installation of that threw something off. Thoughts?