who can tell me why: rules in error?!

[marten]

I am using outlook on two different machines/locations
with the data .pst file on a mobile drive.

When connecting this mobile drive and opening outlook for
the first time at the machine were I arrive, a 'Rules in
error'
pop up window shows up. The pop-up window lists all rules
for which new messages are arriving.

When opening 'rules and alerts' those rules for which
messages have arrived are unchecked.
I have to recheck the rules and click apply, click ok - in
order for all registered rules to work/apply.

Is there a way to avoid this - so that even when switching
between machines/locations and opening outlook for the
first time, both outlook versions on both machines will
recognize and operate the rules and alerts automatically
without 're-applying' them?

THANKS

 

[neo [mvp outlook]]

Does the removable drive get the same drive letter on both machines?