mouseovermarker not working in views?

On my node locations map, the mouseover on the markers works and displays text (I think the title field).

On my view, the mouseover does not work, and nothing is displayed when I mouseover the markers.

Is there a way I can enable the mouseover for views? In the Gmap configuration there is a "extramarkerevents", but the box is greyed out. Further above on the same page, under Map Behavior flags, it says "Behavior flags modify how a map behaves. Grayed out flags are not settable here, but may be set on a map by map basis via code or a macro".

Is there a way I can set these behavior flags so that mouseover tooltips appear in my view?

Great module...I'm just getting started with it and have found that I can do most everything I'm looking for!