Cycle plugin blocks drop down menu items

Cycle plugin blocks drop down menu items

I am not sure if I am alone. But when using Cycle plugin, whenever an image fade out, it will block drop down menu items from a UL above.

For example: http://site1.ewart.library.ubc.ca/node/255

"Category" has drop down (sub) menu items and those sub menu items are constantly blocked.

How to fix that, via CSS or JQuery? ie. change z-index of the slideshow items (or its parent DIV)?

Thanks.