Same thing here, just unplug the external drive. Worked great, now I've got a nice slideshow/screensaver when I remember to turn it on!When I tried hooking my thumb drive up while my External Storage drive was connected I got a TOO MANY USB DEVICES error message.
Brian
Looks like it groups by date uploaded, but then you can rename the folder. If I were really anal about it, I'd upload pictures from Cancun, rename the folder, upload pictures of our pets, rename it, upload pictures from France, et. al., ad nauseum.