This is cross-posted in the vbulletin.com forums, but I think there is more traffic here so I might get an answer faster:
My site does not give an option for users to choose which style they want. I have it set under Style and Language Settings to show Style A, but when you go to my site, Style B is displayed. How can this be? How can I fix it? I have disabled my site temporarily and need to get this figured out ASAP, but I am stumped.
have you ticket the little boxes in Styles & Templates>>>Style Manager?
if you have already go back to Style and Language Settings and change to another style and save and then change it back save. then log out and see if that works
That's the weird thing though, I wasn't even doing anything with the styles! It just started to show up with the wrong one all of a sudden. But whatever the reason, it's fixed now, so I thank you!