Originally Posted by pthwaite
Have you tried ejecting it from DiskUtility ?
I haven't, but that's a good idea. I'll try it next time. Having to save all my work and power-cycle the Mac is getting tiresome. Mainly I've gone back to version 0.5.1 where it works normally, but I'd like to stay current if I can. I use Calibre a lot and I like it very much.
Thanks for the suggestion.