I’m quite sure what you’re seeing is because you may have accidentally locked the transform attributes disabling you from modifying them in anyway. I assume this because you said “some” objects show this, and not all.
When you select the objects you have the problem with, do the channels in the channel box appear greyed out as well (and you can not change their numeric value)? if so, then click/drag on all the names of these locked attributes to select them, then right mouse button click on them and “unlock selected”.
I hope that helps, if not ask the cat :), and if that doesn’t yield an answer, reply to this post again saying it didn’t… I’ll try to figure out what else would be wrong with it.