Deleted invite still sending reminders

Exchange 2007 w/SP1 when issue started 38 weeks ago, just found out
myself. Now running Exch w/SP2 clustered environment.

System A:
Win XP w/SP3
Office 2k7 w/SP2

System B:
Win XP w/SP3
Office 2k3 w/SP3


Scenario:
System B sends invite to meeting, ~100+ attendees. System A accepts
meeting invite. Meeting is attended and notification later dismissed
from System A. Notification continues to prompt System A of meeting.
System B deletes meeting from Outlook calendar, System A continues to
receive reminders, daily. Already tried the /cleanreminders switch and
it seemed to work for a whole day. Next morning user logs into System A
and the reminder is back.

any ideas?


regards,




--
PTO