Peter,

If a SQL Server instance runs under System account it'll see local resources only. See Setting up Windows Services Accounts in BOL for details.

>I'm connected to a LAN and would like to backup (or change the location of the databases & logs) to a mapped networkdrive.
>
>I'm running a SQL Server 2000 Personal Edition (which I assume is pretty much MSDE 2000) on my Win2K workstation and the only drives I seem to have access to are the local ones.
>