I'm in the process of installing Snow Leopard 10.6.3 on my Macbook Air. I tried using two different PCs for CD sharing, and neither would play nice. NOW, as a result of two install attempts, it looks like I have two extra partitions on my Macbook Air! I tried ejecting them, throwing them in the trash bin--- No luck. They appear on the desktop each time I restart. Before I install Snow Leopard, I want these two partitions removed (assuming thats what they are). Please help!