I have two problems trying to register the game:

1. None of the text that I type in the registration boxes shows up so I can't see what I've typed. While I managed to create an account and login, it's very odd.

2. After getting what looks like a successful login, my GOG provided CD key comes back invalid.

1.Try to run the game as admin. Also, make sure your system fonts are displaying at 100%.

2. Any zeros and O's you could be mixing up while inputing the serial ?

Thanks, I had a similar posting about how I can't get type anything in the boxes and it's because my font was set at 125% (I have my pc hooked up to my big HDTV) and once I set it on 100%, it worked along with the advanced video option not being clustered and overlapping the button.

There's also another issue with the registration dialog window. The password field won't accept any non-alphanumeric characters except for the '@' symbol. It looks like it's set to the same requirements as the email or accountname field. Seems the only way to bypass this is to paste the password in.

I saw this post by chance after I sent a support ticket, even though I spent like hours before looking to see if anyone posted similar problems.