Invite times change on invited from outside our exchange server

Hello,

I have a problem in which meeting invites come in with an incorrect time and
may be off from several days to a few hours. This is only occuring on 2 Vista
Business SP1 computers that are running Outlook 2003.

We are running SBS 2003 SP2

This problem does not seem to affect the other local Exchange clients, who
are running Outlook 2003 on Windows XP

It is very likely that tha remote users sending the invites are running
Outlook 2007.

Any ideas?

I'm using Outlook 2003. I am also having a similar problem with meeting
invites arriving from external partners not using our server. Regardless of
when the meeting is scheduled for, it populates in the calendar as starting
at the next closest half hour. Meeting invites sent by internal employees
appear correctly.

I already checked the time zones, and have had several test messages sent
from different people (from corporate email accounts and private ones like
hotmail,) all with the same result.

Thoughts?

I use Outlook 2003 and have a similar problem. When a meeting arrives from
an external source it populates in the calendar starting at the next closest
half hour from when I open it.

Several test meeting invites have been sent from external sources, from both
corporate systems and personal ones like hotmail. I checked the timezones
and they're set properly, as is the DST setting.

Thoughts? It's driving me mad!