Perhaps I'm misunderstanding...
Your Graph Editor should have an Outliner panel embedded in the left side, yes? --When you select an object, all its function curves are listed there, and are displayed on the graph itself on the right. But now if you select just one (or a few) of the attributes by clicking on them in that Outliner area, all the other (non-selected) curves should disappear from the graph.
This doesn't describe your experience? --Perhaps there's something weird about the time warp itself that makes this happen? --I'm afraid I can't imagine why...
-Steve