Foren / Cotonti / Support / Changed domain, login no longer possible

Hello;

I changed domain for my site, but I cannot login anymore. What should I do to normally login on new main domain?

Added 3 hours later:

It's quite urgent so please respond. I'm using newest Siena

Added 19 minutes later:

OK, found it out. I had to manually set in the database the cache variables for main url and cookie domain.