Passwords that contain apostrophes seem to prevent logins via the 'activation panel' in most TTG games, even though logging in to the website works.
More specifically, when my password contains an apostrophe, I cannot activate my games via login - I am told I entered the wrong password. Immediately after changing my password and removing the apostrophe, however, the activation works properly (via login).
For a long time, I had been activating my games via serial number because of this problem. Only with the recent game bundle did I uncover this problem, as the lack of a serial number activation in this particular product forced me to investigate.
PS - This isn't a call for support, per se; my games are working fine now. Just wanted let folks know this problem exists.