I know this isn't JB - I've been shouted to about that in the past, but now that XV's had her/his tips, I have to say that I am much taken by the notion of memory leaks.
Next time my pc is misbehaving, in addition to turning it off/on, and giving it a jolly good slap, and removing Vista, does this mean that I have to lift it up to look for these leaks?
What will they look like - a liquid? Or is it more likely to be bodies of the little men and women that turn the wheels to keep the discs spinning?