Just running this theory past you all here to see if anyone agrees or has any thoughts on this issue.
One of our servers, based in another office, has recently seen all it’s reservations wiped from the resource.nsf database.
Upon investigation the following has been noticed:
The agent for purging documents from the database has been re-signed by one of our admins. This admin uses the Notes 6.5.1 client and the signed date of the agent is in the format dd/mm/yyyy
The server (Domino 6.02CF2) has it’s date settings enabled as mm/dd/yyyy
The agent was signed on 03/06/2004 and all the entries in the resource.nsf database were wiped by 10/06/2004 (they may have been periodically wiped over the previous few days)
My theory is that the difference in date formats may have triggered the following:
Agent signed on 03/06/2004
On that date the Server date shows as 06/03/2004
The agent would begin running on that date onwards, as scheduled. Therefore on 06/03/2004 (server date) the agent would purge items older than that date. The next day, the date on the server would be 06/04/2004 and so on.
This would have been fine for the database until the date hit 06/07/2004 (server date) at which point it would begin to delete entries that were still live (correct date being 07/06/2004) and so on for 06/08/2004 onwards (server date) - until the problem is reported to us on Friday 10/06/2004 (last week)
I have recalled the resource.nsf from the 3 days prior to the 10/06/2004 to compare the document counts to see if my theory holds.
From the restored databases, I plan to rebuild the missing items and correct the date settings on the server and re-sign the agent.
Any thoughts from anyone on this? or questions as this seems a bit confusing 
Thanks
Dave