I installed Leopard, Bootcamp, Windows XP, and VMWare Fusion on a co-worker's Macbook Pro, and then tried to install Windows MS Office Professional 2003 on it. When I insert disk 1 of the set, the disk spins and spins, and then eventually gets spit back out. This happens in Windows running in both Fusion and Boot Camp, and also in MacOS, without Windows running at all. The same disk launches the Office installer just fine on a real PC, and in my own Macbook Pro with identical configuration, it also launches the installer (though after a suspiciously long delay). Other disks work fine on her machine, including disk 2 of MS Office. Any ideas? I have tried cleaning the disk. That is about all I can think of.