Brian Tillman wrote:

Delete the rules that say "for the other machine". For Outlook 2007,
rules are in the PST, I believe, and that's why you see the original
set. Rules contain more information that just what's visible in the
Rules Wizard, however. They also contain information on the PC where
they were defined and that's what's cauing the "other machine" clause
to appear. The export and import should reset that information, but
the old rules will remain until you delete them.

Or leave them in. As you move your PST back and forth, the "other machine"
designation should switch from one set to the other.
--
Brian Tillman [MVP-Outlook]