Changing the date or time - does this happen to anyone else?
If I decide to change my system clock I get a message telling me I don't have authority to change it. Frustrating, but never mind. Either I switch user, or login as root. Now I can change my calendar settings. But whenever I change any setting, my screen goes totally blank (monitor loses its input). It can remain blank for anywhere between 20 and 80 seconds, making me think that the computer has crashed. If I wait long enough, eventually the desktop comes back up again and I try to make another change. But each time I change something, the same thing keeps happening. Occasionally, I'll see some text (as though a mini re-boot is taking place) but mostly it's just a blank screen. Why should there be so much trouble just from changing the time?