Tony

The above code works okay (but it still doesn't render a checkbox) with the last production release of jqGrid. I only get that exception with latest beta release and it still occurs even when I take off the 'afterInsertRow' event.

Hi Tony

Thanks for the reply-I tried that still no success – I included jquery.fmatter.js from 3.4 beta only. I then installed 3.4 beta in its entirety and then recieved “Object doesn't support this property or method” exception when calling jqGrid here is the code :-