Thread:Extension talk:WYSIWYG/Yes: Working with MW-1.21+ with some settings/reply (31)

You could perhaps try to modify following setting in LocalSettings.php (set value to "true"):
 * $wgDefaultUserOptions['riched_use_popup'] = false;     //Deprecated

Based on comment in the end of that line, setting it to value "true" may not work properly at least with programs of #6 bundle of download section.