Category Picker not working correctly….

Although I really like the side by side boxes where you choose the category and hit the <left> or <right> buttons to move the categories… it seems to not work on FF or Chrome.

I can make it work by first choosing a category, then clicking the top button <right arrow> (this does not move the category as it should BTW) then hitting the lower button <left arrow>… then the category moves to the Right Box… so it seems to me that the arrows are reversed in the graphic??

Also, the category picker goes blank if you choose the (Choose All) at the bottom of the Left category box… then, all are “restored” and “highlighted” if you click the (Clear all) button on the bottom of the Right category box….

I limit the number of categories chosen for all of my packages, this could simply go away on my site…