I recently installed Snow Leopard. Well, actually when I first attempted to install it my machine crashed (gray screen). Then I disconnected the two 750GB WD My Book drives (one mirrors the other). The SL install then was successful, but when I attempt to reconnect the external drives my machine crashes (gray screen again). I can't find any info on the WD site for any upgrades to driver software for SL compatibility and haven't been successful at finding any threads on this subject with Apple support. Any ideas?