According to MacSoft, this second-in-24-hours patch for Mac Halo fixes "a random memory trasher in Halo's input system" which may have been causing the keyboard problems some reported with the 1.04 patch. This update also has a page at VersionTracker now, and is available from Rampancy (http://rampancy.net/machalo/halo_103-1041_updater.sit) and from RHL.