ZeroHour's fix worked for me also. Thanx, ZeroHour, for going through all the trouble to come up with it.
And I've contributed some other fixes and additions in the 3.6 thread:
VBGooglemap Member Edition
They are:
* In edit mode, the marker is always the vbGoogleMap red marker, instead of Google Maps's default marker.
* Mousewheel zooming is enabled.
* Terrain display is enabled.
* When mousing over does not make a vbGoogleMap info balloon, it instead makes a HTML-element title that contains the username. This fix thus produces the best of both worlds: a nondisruptive quick look, and a detailed info balloon with more info.
I haven't made terrain display an option for the default display, because I'd have to do a lot of tracking down of where it is set and handled and so forth.
I have also explored the feasibility of making markers draggable in edit mode. It is easy to set up a draggable marker; when you create it, include draggable:true in its marker options. But you also have to set up some event listeners for the marker's motions, and that's a bit trickier and more difficult to debug.
BTW, the site I'm a sysadmin of is at vBulletin 3.7.0 and I've had no troubles that can reasonably be attributed to vBulletin being at this version.