^^yeah i have this problem now too, after i upgraded to 3.6.5

Fixed:

There was a change in the navbar code from the older version:

-- this is what it is now

-- this is what it was before....

Works fine now....

I can see the drop down button but it doesn't show a menu when clicked. It's the correct one with the 'qas_switch'

If you only change the templates on one style, will the ID switch only be available on that style?

Since you make the template changes to a specific style, the chooser will, of course, only appear on that style. Unless you have nested styles and the children's version is unmodified.

Great! That's what I was hoping.

However, if the person knows the URL's from the chooser, those URL's can be used regardless of the style.

That's fine - they'd still need to be registered to know about it in the first place.

I'll mark this installed, although I haven't installed it yet. (That'll take awhile to figure out.) :)

They won't know about it unless they are linked from the admincp. Or approved via request from usercp. :)

Perfect! :) This is a great hack, I really missed that feature changing from EZ to vBulletin!

Any chance someone will take pity on me and tell me what this means?

Where's the admin subfolder? Where's the subdirectory of my forum engine? What's a forum engine?