Comment 3 for bug 404321

Well, it's not "totally unusable" since you can still switch to another user. And there should be other users available if you're under a domain setup. The whole "account locking" AD feature is buggy, since every large AD domain user knows they can easily lock out someone else's account.

I guess in the end it all depends on how "being locked out" translates, since I can imagine a bug asking for the complete contrary of what you're asking.

In that discussion, it might be worth considering that Microsoft does not apply lockout policy to the "screen unlock" dialog: http://support.microsoft.com/kb/188700

Maybe gnome-screensaver's unlock screen dialog could be taught to recognize a specific "locked" error code, but I'm far from convinced we should do that.