So, I've got two 5200 controllers, refurbished and rebuilt, and they work just fine most of the time. However, every now and then the system will simply just not detect either right or down directions on a controller. Swapping it for the other controller will accomplish nothing; the same directions will still be out of whack. Eventually the directional control comes back - usually after I spin the stick around a few times, though I don't think that has any actual bearing other than giving me something to do while I wait around - but until then I'm stuck with left and up.

I've read online that it could be a problem on the motherboard itself, something that needs to be adjusted. Could someone shed some light on that, assuming it sounds like that's the problem?