'Submit' text showing over arrow score icon in IE

Hi,

The arrow icon for the 'score' shows the text 'submit' over the arrow icon in IE (have only tested IE7) when it should only be the arrow.

You can view it here: http://illawarrahomeloans.com.au/questions/how-do-the-repayments-work-on-a-between-homes-loan/

Can someone please advise a fix for this?

Thanks,
Elise