Sliding closet doors keep coming off the track, how to fix

I have a 2001 Cedar Creek and my closet doors were always jumping the track but I installed a Burgla Bar on them and they keep the doors tightly closed. Got them on Amazon and cheap. Oh, due to the terrible condition of many interstates I put my 32" flat screen on the bed and cover it with a heavy spread and it works very well.
My 2 cents worth.
Imaroadrunner
Las Vegas
2005 Ram 3500 CTD (62k miles) 6 speed
'01 Cedar Creek 34ft.