select tag - *RESOLVED*

Ok guys this one has me puzzled.

I have a select tag that uses a css to define its appearance and works fine. As soon as I add a multiple attribute it becomes one pixel high and unuseable. Any ideas? Below is the before and after code.

<select name="region" class="enquiry_combo">
This works fine

<select multiple name="region" class="enquiry_combo">
Screws up!

Any ideas?

Cheers

DJ

Sorted it - had to remove the specified height in the style sheet and it works fine.