remove bubble

How do I remove the bubble/tooltip that shows up when you mouseover a marker? I've got a custom page that shows in a popup window when clicked, so don't want the bubble as well. It doesn't work very well as the map jumps around as soon as a bubble is outside the frame.
I couldn't find anywhere in config to completely disable it.

I'm using Joomla 1.5 so might have an older version. Also sent this as an email but haven't heard back.

Thanks for the assistance.

I've already got it set to click, but the bubbles still show. Anythign else?

I'm happy to go into the code and remove from here, at least if you could let me know which file to edit because I couldn't figure it out.