I've already downloaded Lion from the app store. I'm now trying to install it but when I hit "install" it asks me to select a disk where you want to install Mac OS X. The drive that is shown is shaded out and won't let me select it. Below that drive it says This disk is used for Time Machine Backups. Anyboy got an idea what to do next? Note: this drive is not the standard drive the came with the MacBook, it is the drive I upgraded to with is a Kingston SSD drive if that makes any difference.