Do a clean install
Turn OFF updates (if it ain't broke, don't fix it).
Make sure install disk is a SP2 edition (installing XP then installing SP2 over it always causes trouble)
If you have a specific problem then get the update manually (search knowledge base for info)
Do all my customers machines this way, never any problems (mmmm...bad for business???) maybe I should install updates so they call me more.
Danny

