First thing, I re-installed the drivers (at least I assume that's part of the Kies install process) from http://www.samsung.com/uk/support/model/GT-N7000ZBAXEU-downloads\Kies_220.127.116.1194_27_11.exe
Things changed, but folder access is still weird. When I drag/drop, the "Copying" pops up immediately, and the progress bar goes to 100%, but then it throws "Error Copying File: Cannot copy defrault.bcn: The device has either stopped respronding or has been disconnected."
The Note's screen is still there - i.e. auto-lock has not kicked in.
After I cancel the process, my PC seems to hang when I try to open either "Phone" or "Card" on the Note. Yank the USB cable, and the PC starts working again.
FWIW, the attempted copy was from the external SD card to the internal SD card.
Anybody been here? Maybe the wrong source for drivers?