CRM 2011 UR15 problem

Hi

There is a problem with Firefox and Chrome in CRM 2011 UR15:

If you make Multiline field Read-Only in form designer , and  enable that in script that field still remain disabled in firefox and chrome.

After some investigation I found "readonly" attribute in <textarea> tag related to Multiline field has readonly value even after Xrm.Page.getControl("xxxx").setDisabled(false);

Also I found before calling this method the result of Xrm.Page.getControl("xxxx").getDisabled(); is false !!! but it should be true because I made that Read-Only in form designer.

this is BUG , is there any place I inform that to CRM team ?

Blessing. mOhammad tArhsaz.