I saw your earlier article about how to set up your Mac so that it requires a password when waking up from sleep or from the screen saver (see password required to wake Mac from sleep). Nice. Now, how can I do that with my Microsoft Windows Vista PC laptop?

My kids are driving me a bit crazy: they keep opening up my MacBook Pro and messing around with it, even when I tell them not to. Since I can't hover over it like an eagle, I need a software solution: how do I require a password to be typed in - to password protect the computer - on either wake from sleep or going from a screen saver to the regular desktop on Mac OS X Snow Leopard?

It's not that I'm paranoid, but I am worried that my roommate might have figured out my Facebook password and I want to change it ASAP. How do I change my Facebook password?

My local newspaper's computer guru recently said that it was possible for a hacker to read what you have just copied into memory. The example he used was copying your password from a text file into a password box on a website. Is this true?