From: "Frank Haber" 

Update: Both machines in question were XP Pro, with a couple of
unpassworded admin accounts, which were also enabled for "debugger
users" (don't remember changing policies/groups for that).  Login was
set to the Win2k method, but with blank password.  Fast user switching was
disabled.

So far, that's what I set, except for the "debugger" thing.  BUT!
 AND! Somehow, "offline files" had gotten set.  Unset same. This
seems to have cured most of the slow-boot problem.  I also found some
printers set to "use while offline."  Cleared those, for good
measure, and set up another clean admin user, in case I'm about to be bit
with account corruption.

Onwards and upwards.  Moral: don't trust; check.  Insert name of favorite
vendor above.

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