I bought a 1TB WD MyBook Studio drive for use as my Time Machine backup, and I've been having problems with it ever since. When copying files from it using FW, it will just stop copying. The only thing I can do is unplug the drive from my MB (Late 2006 White 2.0GHz 3GB RAM OS X 10.5.7). Also, while it is plugged in, Time Machine will always prepare forever, I know the reason, but it happens at every backup and it takes about 2 hours to prepare. The last problem is that the system will hang on shut down with the drive attached via FW. Just sit with only the desktop picture showing - the only way out is to force shutdown. Any ideas?