Hey guys, frustrating issue thats got me hopping. I've been trying to install Windows 7 on an Early 2008 iMac. I enabled the USB install option in Bootcamp and selected my Win7 ISO (known good!). I rebooted but it never showed up. I've tried another USB port, another USB drive, another ISO. It doesn't show up in the boot menu (native, rEFIt, rEFIed) nor the startup pane. What the hell is happening?