Clicking like a nutter...

I have a grid with a fairly large data set (500 rows, 5 cols), 2 headers and a footer.

Inside header-1 are 4 input boxes, and inside footer-0 is an input box and a button.


Randomly clicking the controls on this grid sends Internet Explorer mental - permanently stuck in a loop, the CPU usage sticks on 98/99 even when the grid is idle. This problem does not occur in Firefox however (CPU usage hits 80 max).


I've tried commenting out all events linked to my controls but this does no good. Code such as

obj.onControlActivated = function(event){event.cancelBubble = true;};

does not have any effect. Also limiting my data set to just a few rows makes no difference.