WinXP V5.1 SP3
When an entry is open for viewing/editing the workspace does not lock after the inactivity timeout.
I tend to store a series of notes about each account in the KeePass entry, so I tend to view (open) each entry I want to use before I copy/paste the username/password. KeePass does not lock after the inactivity timeout when any entry is open. Workspace lock works fine otherwise.