Dropdown boxes behaving strangely on Chrome

[ayorofrance]

Hi Eric,

In my shop 30208 I am trying to use dropdown boxes instead of UL lists due to the number of items in the filters.

I thought I'd set it all up all right - it works fine in Firefox... however I am seeing some strange behaviour on Chrome.

If I go to a category page and click one of the sort options both filter (Model and Price) dropdown boxes disappears.

If I select an item in one of the filters the other dropdown box disappears...

Would you have any idea what might be causing this?

Thanks!