I suspect the automatic updates, but here's my problem, which started roughly this Monday.
Prior to last Friday, I had the normal starfield screensaver w/ no password required upon resuming activity.
Since Monday, my machine lost the screensaver and requires me to login again to resume activity. Also when I press the Settings button in the screensaver tab, it informs me: "The screen saver has no options that you can set", and the options in the screensaver tab are grayed out. I am an administrator on the box, so I should be able to change these things (AFAIK), but now I can't. Any ideas?