Internet Explorer and CSS categories

[SethF]

Hi

Internet explorer has a serious problem with my categories.

I have no idea what is wrong. It is confusing because the same category plugin works on Internet Explorer on another website.

Please help me to resolve this as a lot of my customer base will be users using Internet Explorer.

The only thing I've changed in the CSS flyout menu is the colours. I added a gradient colour on mouse-over when the category has no subcategories. So, basically I've just changed the colours, and the arrow which indicates that there is a subcategory.

This is my website:

pcselect.co.za

Please help me to resolve this.

All help is greatly appreciated.

Thanks
S