IE 7 question . . . how do I get .png files to display?

On sites like wikipedia, which uses the .png file type heavily, it shows up on the page with a red x. However, the OS (Vista) will open files with that extension as regular image files. I've already tried adding it to the registry. What now?

IE 7 question . . . how do I get .png files to display?windows updates

You may have a bad hotfix for the PNG vulnerability noted here:

http://www.microsoft.com/technet/securit...

Known issues with the hotfix are listed here:

http://support.microsoft.com/kb/883939

You can find general help with image rendering in IE 7 here:

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