I've to a 20" first gen Intel iMac running the current system. Recently put in new drive, backed up from Time Machine and setup Bootcamp. Some squirrely behavior so ran current version of Disk Warrior at the same time I also ran some system updates (two days ago), and suddenly none of the USB ports recognize my Comfort keyboard. My laptop does, so it's not the keyboard.
I've reinstalled the most recent Combo version of the system, run through all the suggestions for slow keyboard and mouse response here, http://reviews.cnet.com/8301-13727_7-10471886-263.html?tag=mncol and none of those helped (zapping pram, removing global account prefs, starting up in safe boot). The keyboard does not, as far as I can tell, have its own separate driver (and again, it worked fine on a much newer Macbook Pro that wouldn't have had the drivers installed)
Suggestions? I use this keyboard because of rotten arthritis and carpal tunnel, so any suggestions would be greatly appreciated!