Can't login into ICQ account

Since today, everytime I want to login into my ICQ account via iChat it asks for my password but when I enter it, it keeps asking again. I did a little google research and as it shows, ICQ changed the login servers. The same problem also happened with adium. A suggested solution for adium was to change the login server from the default settings to the new login.icq.com and it worked after a restart (no change of default Port 5190). But when I change the server in iChat it still asks for my password. Palringo and ICQ apps for iPhone and beejive for iPad still work without a change. I changed my password for my ICQ account but that didn't help to get iChat working again either. I know iChat doesn't support ICQ natively, but if you choose AIM you can enter your ICQ login and password and it worked fine for several years. I have Chax installed to remove the html code that is sent to people with every message that don't use iChat. Any solutions or suggestions? I know I could use Adium instead but I don't want to give up certain feature like screensharing, videochat or iChat theatre...