Thanks but no, that didn't work. I also tried to login to My Disney Vacation and I got the same message. I'll wait till tomorrow to get my Disney fix.
Although it does keep telling me the I'm logged in to another Disney site somewhere else and that I must log out first. I did, but now it wants me to re-register for DVC site. Guess I'll call member services tomorrow and as for another 'one time only' activation code.