Button displays fine in Firefox, but in IE8 it is invisible on the page until I hover my cursor over it. It appears for as long as my cursor is over it, but then disappears once I hover elsewhere. The button seems to work properly as far as functionality goes. It just can't be seen by IE users unless they happen to hover over it.

Also note that when I hover on the Buy Now button in IE, the Place Bid button then disappears.

Any ideas on fixing this?