Thanks for all the replies, guys. Mysteriously, it all went working today, after I did a re-update from the update page. The first time, when I should upgrade to 3.3, it freezed, so I had to download the package and upload the files through FTP, and after that the problem came. Then, I did the automatic re-update and it all worked.
Try doing that ??
And yes, bhellsten, it looked exactly the same with me.