Messager progress display creates continuous js errors in console

[frapa02]

When using the messager.progress function with EasyUI v1.2.5:

$.messager.progress

I get errors reported on the javascript console on a continuous basis, about 3 or 4 per second. Here is an example of the error with Firefox and Firebug:

$.data(jq[0], "progressbar") is undefined
return $.data(jq[0],"progressbar").options.value;     jquery....min.js (line 1710)

This is causing slow running or freezes the form with IE 8. 'Error on page' also appears in the browser window, bottom left.

Hard to debug as I can't read the code as the full source is not available. The messager progressbar is working well in Firefox, it is just the errors which are a problem.

Here is my code:
                  $.messager.progress({
                     title: 'Validation',
                     msg: 'Checking Code '+value,
                     text: 'PROCESSING.......'
                  });
Then after validating I have:
                  $.messager.progress('close');

Paul.