OK, sue me for re-using the same bad joke inside of a week. There's an old adage about blood and a stone that applies to the results.

Anyway, there is a hotfix-- ahem, I mean, patch, for PC Halo that brings it up to version 1.01. There's no list of changes with it, and apparently the auto-updating feature of the game will also retrieve this patch.

Blue's News and HBO have lists of mirrors for the patch.