I purchased a Mac computer with Snow Leopard already installed on the computer, and somewhere along the way I deleted iCal. As I understand it from the Apple link below, iCal is "bundled" with Mac Mail and Address Book <http://www.apple.com/macosx/what-is-macosx/mail-ical-address-book.html>. And that Mac Mail can be configured to include online email accounts like gmail. I'm currently using Mac Mail 4.3 (1081), and as far as I know, I cannot use this version of Mac Mail to include online email like gmail. This particular version of Mac Mail is corrupted on my computer as the plus sign and edit buttons on the bottom of the Address Book are not visible. I am interested in re-gaining the use of the plus sign and edit button within the Mac Mail Address Book, and also in accessing online email accounts within Mac Mail. Since Snow Leopard was already installed on my computer when I purchased it, I don't currently have a Snow Leopard installation disk. As such, what is the best way for me to update my Mac Mail application in order to use the Address Book and online email account applications mentioned above within Mac Mail. My best guess is to purchase the Snow Leopard installation disk independently, and use Pacifist software to extract iCal from this disk, and through iCal, use Mac Mail for my two applications of interest. Thanks for any tips.