Flexigrid and IE8

Flexigrid and IE8

Hi guys,
has anyone noticed the strange behaviour of Flexgrids' Show/Hide Columns functionality when running on IE8. The 'down arrow' icon is displayed in the next columns header more and more so as you move across the grid from left to right. It would be easier to explain this problem with an image attachment but I don't see an option to do this here. If you think you may be able to help or are just curious post a contact email address.

thanks in advance

Tony