Is perhaps Opera Software having some problems with their community servers? Since a few hours half of my requests result in white pages or return code 500 error messages or simple nice messages like this:

Bad Gateway

The proxy server received an invalid response from an upstream server.

Apache Server at Port 80

Perhaps they didn’t expect that many new people interested in the browser now that it has gone free ;-) I just hope that they will fix this problem soon, otherwise the whole marketing bonus will get lost after the 3rd click of their users ;-)