Menu dropdowns stop working in multiple-page threads
 

Hi all. Kind of a weird problem here. In one of my forum styles, to which I've added my own dropdown menu system, everything seems to work fine ... except when threads get longer than a single page. Once that happens, the vb_control popups no longer work and I get a javascript error of some kind.

Sample single-page thread where all vb menus work.

Sample multi-page thread where vb menus don't work.

It's probably a conflict of some kind with the menu script I'm using (although this is a very well-put-together script; it's from ProjectSeven), or a template gitch, but I can't figure out why going to multiple pages should cause an issue. What script changes occur when a thread grows longer than a page?

Any ideas? I'd really appreciate if anyone could nudge me in the right direction! Thanks. :)