As vBulletin provides speedest support on the earth, here is the fixed vbulletin_textedit.js file from 4.0.3
just change it in your clientscript directory.

http://www.akumb.am/clientscript/vbu...tedit.js?v=403

the only change is done on line 159 and 160

Code:
B[A].colorname = YAHOO.util.Dom.getStyle(B[A].firstChild, "background-color");
B[A].id = this.editorid + "_color_" + this.translate_color_commandvalue(B[A].colorname);
transformed to
Code:
B[A].colorname = this.translate_color_commandvalue(YAHOO.util.Dom.g etStyle(B[A].firstChild, "background-color"));
B[A].id = this.editorid + "_color_" + B[A].colorname;
Нашел на форуме vBulletin.