tehpie, I think your answer is right, I did (2^88*30)/31557600
which is:
(possible combinations * seconds for each setting up of game) / number of seconds in a year
It all seems mathamatically sound, and I can't see any other way.
the number of seconds in a year was calculated by:
365.25 days (to account for leap years) * 24 hours * 60 minutes * 60 seconds