Description of problem:
Screen doesn't lock after specified time.
Running gnome-screensaver manually produces memory warning (see below)
Version-Release number of selected component (if applicable):
Steps to Reproduce:
***MEMORY-WARNING***: gnome-screensaver: GSlice: g_thread_init() must be
called before all other GLib functions; memory corruption due to late invocation
of g_thread_init() has been detected; this program is likely to crash, leak or
unexpectedly abort soon...
Screen need to reliably lock for local security/privacy reasons
logged in as root?
No - but I rebooted the system later and the problem has cleared now.
So it was probably a library upgrade. You can close this one I think.