RE: Are door hinge problems common?
Well, I've heard about the hinges before... needless to say, the doors probably aren't too easy on the hinges (kinda heavy).
Here's pics of my hinges... that top one isn't looking too great. My top hinge looks like its been welded. [&:]
I don't know the "prefered" repair, but I'm guessing if you get one "stock" it will go bad again. If mine goes, I'll just rig 'er up good.