The problem is fixed right now, I don't experience issues but I confirm that today, even some minutes ago, Bitcointalk had a problem, it was loading very slowly and sometimes the server was shut down.
By the way, am I the only one who experiences problems on Bitcointalk very regularly? The server is shut down very often but gladly it's only for some minutes. I hope everything is okay with the forum, it will be good if theymos or forum moderators explain why this happens so often (probably once a week).