I've just upgraded to BOINC 5.10.20. I use the BOINC screensaver, and have BOINC set not to run when the computer is active.

The screensaver starts normally, but after about 2 minutes, puts up the scrolling message "Boinc is suspended..." and will stay in that state for as long as I leave it. I see no indication of the issue from the messages, a copy of the relevant section of which is provided below, starting with when the screensaver first loads.

Tue Sep 11 12:43:44 2007||Resuming computation
Tue Sep 11 12:43:44 2007||Resuming network activity
<<the next msg generated when I interrupt the
screensaver after it goes to "Boinc is suspended...">>
Tue Sep 11 12:45:51 2007||Suspending network activity - user is active
<<these msgs generated when I call "Read local prefs file.">>
Tue Sep 11 12:46:22 2007||General prefs: from SETI@home (last modified 2007-09-07 13:07:41)
Tue Sep 11 12:46:22 2007||Host location: work
Tue Sep 11 12:46:22 2007||General prefs: no separate prefs for work; using your defaults
Tue Sep 11 12:46:22 2007||Reading preferences override file
Tue Sep 11 12:46:22 2007||Preferences limit memory usage when active to 1024.00MB
Tue Sep 11 12:46:22 2007||Preferences limit memory usage when idle to 1843.20MB
Tue Sep 11 12:46:22 2007||Preferences limit disk usage to 1.86GB

Any ideas would be appreciated.
Mac

Further to my last message, I now find that the screensaver behaves the same way even if I set prefereces to run when the computer is active, too. In this case, the message "Suspending computation" is generated at the same time the screensaver goes to "Boinc is currently suspended" with no further elaboration. When I touch a key to stop the screensaver, the message "Resuming computation" is generated.