Menu Issue

Hello All,

A little problem with my site. When you hoverover my menu items at the top you get a drop down – it seems like if you roll over them a few times suddenly there is a transparent gap between the menu and the drop down items. This just started a few days ago and I didn’t do any updates between them. I just updated to 4.6.1 to see if that helped but it doesn’t. Any suggestions?

This is a template I created with Artisteer. THANKS!!

Site: http://stmarysmorris.com/