OK, I'm not getting any help over at vB, so maybe one of you here can help me with my problem:

Some characters (quotes, apostrophes, etc.) are turning into weird question mark symbols. I think this might have to do something with the encoding I'm using, but I'm unsure.

And it only seems like some posts get this issue, other ones seem fine, take a look at this page for example:
http://www.conspiracy-forums.com/9-1...ind-911-a.html

Also, I have vbSEO installed, with the "Latest Blog Post" via Carp plugin installed as well:
http://www.vbulletin.org/forum/showthread.php?t=91781

Where you are going to meet new year?