i was going to try it with steam, but i couldn't find a working download link, the people who took over the project a wile back let the domain go, and its no longer there
i really think its account bound issue though, i tried a 2nd acct and had no issues getting razor to work, and i had a friend try my account who uses razor for all his accounts, and he had no issues getting it to work with his accts, but couldn't get it to work with mine on his computer
So you can start Razor, have it load the client correctly then with the client now open, you can login to one account successfully then log out of that account without closing client.exe and attempt logging back in with the "trouble" account and it fails? This certainly seems to eliminate a Razor config issue or a client.exe issue.
The fact that your friend can then do the same thing on his PC and has the exact same problem eliminated PC issues, file system permissions, access issues to your profile settings, etc.
I would agree, the only thing left is the account itself. You don't have any weird characters in your login information do you? Nothing out of the ordinary with subscriptions that you know of?