I have a 20" iMac Core Duo and a MacBook Core 2 Duo 3106 has no issues on the macbook but on the imac there are two recurring, weird things: 1. everytime i start up the VM i get the message that parallel tools is beiing installed; and 2. when i enter coherence the windows task bar appears at the top of my screen and not directly above the dock. I have to drag it to the bottom of the screen. Neither of these are major, but I thought they might be of interest to the parallels guys.