Dropdown Menu (Superfish) overlapped by Dynamic Content Gallery in Firefox.. need help!

Dropdown Menu (Superfish) overlapped by Dynamic Content Gallery in Firefox.. need help!

Hello, I'm developing a website right now for a client -- http://iloveomfg.com/ .

Issue:
On the homepage, the dropdown menu for "cities" (hover over "cities") gets overlapped by the Dynamic Content Gallery (DCG), which as a result cuts off bottom portion of the dropdown.
Dropdown Menus are using Superfish.



The issue only occurs in Firefox.  It works fine in IE, hovering over the top of the DCG slide (weird, right?).

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Screenshot in Firefox:


Screenshot in IE:

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Any way to fix this?
I was thinking it could be corrected by adjusting the z-index of the dropdown menu, but decided I would ask here first before I get in over my head.

Any help would be greatly appreciated,

- Harley