[Plugin: Capability Manager] Changes in options leads to hardcoded nonundoable changes in admin pane

Hi! I tried the plugin today – and have tried another, similar, plugin, and both yielded the same result.. When I hide options, the css “display:none” is hardcoded in the admin interface – this of course is not a problem until you try to unhide the options – but that doesn’t work! The only solution I found to revert was to restore the database to a previous copy. Any thoughts on what’s going on here?

http://ww.wp.xz.cn/extend/plugins/capsman/