One needs at least a 1.9GHz iMac G5 to run iMovie '08... but I have a 1.8GHz. Apparently I won't be able to install it. I assume the performance drop-off won't be too bad given the narrow difference, so I'd like to trick the installer into installing it. Does anyone know how to do this? I can't justify buying iLife '08 if I can't use the new iMovie (alongside the old)... is there any way?