Cannot access GRUB or my Linux distro after deleting Win 8. Please help

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http://unix.stackexchange.com – I have Windows Vista and Linux Mint 12 KDE installed on my PC, each installed on it's own hard drive. I recently wanted to try out Windows 8 Consumer Preview and see how it ran on my PC so I created a partition on my Windows hard drive for Win 8. After installing Win 8, GRUB no longer appeared when I turned on my computer, but a Windows 8 bootloader that let me choose between Windows Vista or Windows 8. Well after testing out Windows 8 a bit, and trying to get it to detect my wireless adapter (outdated drivers), I wanted to use Linux so in Vista I wiped the partition that had Win 8 installed a (HowTos)