I think we have identified the problem. We include a third party app that includes an older version of jQuery after we include a newer one we need for our custom scripts. This app only gets used every so often so will only effect the loading of the page occasionaly.
We have looked at the noConflict() function in jQuery but are coming up against all sorts of problems.
Do we have to prefix our jquery with a variable of our choosing, then go through all our custom jQuery and plugins updating anywhere $ is referenced?
or is there a simpler solution to this???