One for the geeks and a game.

Using quantum mechanics, show that 42 is the answer to life, the universe and the third moment of the Riemann zeta function.

Strange Attractors is an addictive game built around the concept of using only a single to control a space ship. Your ship gets bounced, flung, and warped around levels, with the only control being the gravity drive. Hit the space bar, and you can sling shot around (or bounce of) the large metal spheres. The size of the spheres affects how hard they pull, and how much they move when you hit them.

You might as well give it a go, the controls don;t take too long to learn ;)
(seen here)

As RjY points out it's anoying when you realise that your digital camera has the wrong date on it. All your photo's have the wong created date on them.
(It's anoying when equipment switches and DST hasn't happened but that's another story)

This happened to me this weekend. When trying to rename camera files from DSCF to yymmdd I spotted that the new years eve photo's were being named 060104. I found a couple of windows programs that would let you adjust file attributes one at a time, or a whole folder in batch, but only to a set date.

Finally I found THE renamer. It not only batch renames files for me (I used to use this renamer ), but will adjust creation date, by a given number of seconds, minuets, hours, days, months, or years.

Very useful.