Hi, this seems to be a bug on right-to-left pages. I will include a fix in the next SmartMenus release. In the meantime you can fix it by editing the following file:
http://nifgashim.com/inc/jq/smartmenus/css/sm-core-css.css
You will need to remove the left:-800px;
declaration from the following rule:
ul.sm ul{position:absolute;top:-999999px;left:-800px;width:100px;}
i.e. like this:
ul.sm ul{position:absolute;top:-999999px;width:100px;}
Thanks!