I know that many here are having trouble with logging or registering. I'm pretty sure that it's on Pro Boards end but I am looking at all the clicky things that I clicked to see if I clicked something that shoulcn't have been clicked.
If it won't take the first time, try again (register). It took me a couple of times the first time when I was testing another "character" to find out what is going on. Remember, the login and register is case sensitive so if you have to type anything twice for confirmation, you may have hit the wrong key or used the wrong case.