I have the same bug on a laptop using google chrome
OK it looks like if you use the simple editor in Opera it works fine other then the white bar on the side when viewing the thread.
For what it's worth, I still see the vbulletin error message on login.
Indeed, the message mentions www., while the redirect takes to phoronix.com/ without the www.I've found the problem on my forum, it was related to the "Always use Forum URL as Base Path" option. This was enabled, which meant that when people accessed the forum without the www. they would get a redirect error when logging in, but with the www. was fine. Now the option is disabled, both URLs seem to be working OK again. This problem did only show up with the very latest round of updates though so the behaviour of this option seems to have changed recently.
I am also getting same problem. The forum is not recognizing me first time. I have to login twice to access my account. I guess it might be database problem.
I'm also getting the error when logging in to the forum. It works on the second try.
The ads on the right are only visible on the forum index. When browsing a topic, there are no ads on the right side. Google Chrome leaves a whitespace at the right, Firefox doesn't.
On the forum index with Firefox it also happens occasionally that an ad gets replaced by whitespace. This whitespace disappears when enabling AdBlock.
(haven't tested AdBlock on Chrome yet)