From the Bungie HALO PC Lead Tester: "This is a 1-day advance warning that we'll be releasing a hotfix to Halo PC (v 1.05) sometime tomorrow. No feature changes, just two fixes:

1. Security fix to prevent a malicious user from being able to shut down the game on the server (never yet exploited, that we know of)

2. Fix for the XP SP2 problems as noted in my other recent thread on The Maw forum on www.bungie.net.

I'll be sending the corresponding hotfix for Halo CE (to v. 1.05 to stay consistent) to Gearbox tomorrow also, please see their forums at that time for download instructions. (I'll set Halo CE to auto-update also, if Gearbox has a codesigning certificate available (I'm not sure). If they don't, I will refrain from having it auto-update, for the protection of the users, who we don't want to encourage to run unsigned bits that are pushed to them, due to the risk of spoofing.)"