Yeah its getting annoying, I mean I'll play Gears today, wait about 24 hours and load it up again then tells me another update is available. Everyday, it seems like its not saving the updates or something.
Have you gotten the update message for the same game on consecutive days? Does the update seem to complete and the game start up? Can you play the game without any issues? If this keeps happening on every game everytime you put it in, you should contact MS for help.