Internet Explorer not displaying gif file

My friend is making a website. Some of the pages display gif image files as links. They display correctly in Firefox and Chrome but not in Internet Explorer. How can I get the images to display in Internet Explorer? Here is a line of html code that should display the gif links:

<a href="kendo.htm"><img src="arrowprev.gif" alt="previous page arrow"/></a>
  | <a href="index.htm">HOME</a> 
  | <a href="festivals.htm"><im开发者_如何学编程g src="arrownext.gif" alt="next page arrow"/></a>

Thanks for the help!

Try these two links:

• http://support.microsoft.com/kb/283807
• http://support.microsoft.com/kb/307239

The .gif files being used are simply not compatible with Internet Explorer 8. I am not sure why though since IE 8 does support .gif files. When I try to open the .gif file itself directly with IE8, it does not display. IE8 can directly open and display other .gif files though.

Chances are that the colorspace for those images is CMYK, not RGB. Is he a graphic designer who is more at home in print than the web?