I've done some more digging. I've constructed a script that loads the relevant OpenLayers library scripts in the requisite order (deduced by peforming a successful build). Before each script loads I check for Event.pointerX and perhaps unsurprisingly it's becoming undefined after Events.js loads.
I broke Events.js down and the problem is in this code: // FIXME: Remove this in 3.0. In 3.0, Event.stop will no longer be provided // by OpenLayers. if (window.Event) { OpenLayers.Util.applyDefaults(window.Event, OpenLayers.Event); } else { var Event = OpenLayers.Event; } For some reason IE is thinking that window.Event is false and is creating a new Event object, thus overwriting the Prototype Event object. I've tried forcing it to hit the OpenLayers.Util.applyDefaults() line but then I get an exception about the method not being supported. As the comment suggests, perhaps this code can simply be removed. Certainly in my test rig that seems to work. I need to test this more but if anyone has anything to contribute I'm all ears. Thanks Stuart -- View this message in context: http://n2.nabble.com/OpenLayers-and-Prototype-conflict-in-IE-tp4591037p4627621.html Sent from the OpenLayers Dev mailing list archive at Nabble.com. _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev