When I originally installed XP, it would boot and bring up my desktop with no intervention. I don't know how it happened, but suddenly the Windows Logon dialog box now comes up when I boot the computer, and it asks for a password. I can continue the boot by just clicking "OK" and not entering a password (I DO NOT want to use this feature!), but how do I restore XP to the original configuration where it skips this password dialog box?

Also, when I hit CTRL + ALT + Delete to bring up Task Manager, I now get a "Windows Security" dialog box where I have to click a button to get Task Manager - before the above happened, I would get Task Manager without this dialog box. I assume whatever changed the first problem caused the second, too! If the fix for the first problem will resolve both these issues, great, if not, I would like to know how to restore this to the way it originally worked, too.

Thanks!