Hibernate option disappears in Windows Vista

I've been having some problems where the Hibernate option disappears from my Start menu, and I tend to use it a lot. It's actually a pretty simple fix, but it's still annoying to have to do.

1. Run the Command Prompt as the administrator. To do that, right-click the program icon and choose "Run as administrator"

2. In the command prompt, type the command "powercfg /hibernate on" and press Enter

That's all you should need to do. Check MS KB929658 for more info