Don't forget too, there were always two different "clear the cache" solutions for the XBox. One was to hold down any button, usually described using the "A" button, while the game was loading, up to a certain point. (I'm an idiot, could never remember when it was safe to let it go, so I just held it down forever. That works too, btw.) I'm guessing that was the same fix as holding the two bumpers down.
There was another, more complicated procedure, however, that would also remove (I think) all updates to the XBox and games... so if you go surfing for clear cache
, be careful. The one that has you go through the Dashboard and do X, X, Left Bumper, Right Bumper, X, X - is the one that you should never run unless you know what you're doing, lol. I came very close to doing this one day, and I can only imagine FFXI with all of it's updates removed... or downloading them all over again!