If you're using PNG it's because Internet Explorer SUCKS at rendering PNGs. IE can only do binary transparency, it cannot do a full alpha channel.

Jon

On Fri, 2 Jul 2004 17:26:07 -0400 David A Iacobellis wrote:

Hello,

I developed a website and used script-fu/logos in gimp 1.2 to make the logos and buttons. I then removed the background layer from the image to give me a transparent background. In mozilla and konqueror the images are rendered correctly but recently I pulled up the website on a friends windows xp machine with internet explorer and discovered the logos transparent background shows up as white. Can anyone tell me why this is and also if there is a way to correct this.

Thanks in advance,

Dave

what image format are you using?

Jonathan Bartlett wrote:

If you're using PNG it's because Internet Explorer SUCKS at rendering PNGs. IE can only do binary transparency, it cannot do a full alpha channel.

There are two ways around this: you can convert the image in Gimp to indexed color (yuck, but compatible; not suitable for all types of images), or use terrible scary IE hacks to make it render alpha transparency (looks great, but doesn't always work depending on IE version and security settings).

See: http://support.microsoft.com/default.aspx?scid=kb;en-us;294714

There are some scripts to automate use of this hack such as: http://homepage.ntlworld.com/bobosola/index.htm

-- brion vibber (brion @ pobox.com)