If you dual boot as I do with multiple Operating Systems, you are familiar with the GRUB Loader that loads right after the BIOS. This loader lets you choose wether to load Ubuntu Linux or Windows. When I installed the Windows 7 Beta, I noticed I had no choice but Windows 7 afterwards. After a quick search, I found this article at the How To Geek on how to restore it and I was reminded of it recently as I installed Windows 7 RC and the same thing happened. Here's a link to the article if, like me, you dual boot and got stuck wondering, "Where did Ubuntu go?"
Now, if you're a N00b, or just want a quick fix, here's a link to Super Grub Disk .org and they have created an app that you can download and help you get over any Terminal fears!
Hope these help some out there and remember that our contest for a Free 2GB MP3 Player is going on until the end of the month. All you have to do is either donate through our PayPal link, our post a comment on any of the last three posts!