I discovered that the cupboard doors above the entertainment center can pop open and hit the slides of the closed slides. If you do not check EVERY time, they can jam the slides when you try to open them. Luckily in my case the door closest to the trim had come open and the slide did not move more than a fraction of an inch before it stopped. Since the slide did not have a chance to build momentum, no damage was done (but I did have to run the slide closed to close the door).
Had it been the one closer to the wall, the slide would have surely torn the door off.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW