Superfish - navbar - subitems appearring behind one another

Superfish - navbar - subitems appearring behind one another

 Hi,

I am putting together a superfish navbar.

I have basically copied all code, replaced li names to ensure that I have the basic navigation down.

My issue is that one set of subitems is longer than the rest, and as you hover the other "tabs", the subitems for the newly hovered tab appear (as they should), but the longer list of subitems still appear behind them to the right.

Am I missing something?

Thanks