IE PNG Fix with Background Support

I have commented on this topic many times before, and it always seems like there is a new IE PNG fix out, but IE PNG Alpha Fix v1.0 RC4 is exciting for two reasons:

1. It automatically supports png background transparencies. My current solution is Sleight and while it benefits from a lack of lag time, it does not support background transparencies.
2. It requires 1 line of CSS to implement. Yes, you heard that right.

Here is example code taken from the source of their demo page:

<style type="text/css">

/* USAGE: All you have to do is include this one line in your CSS file, with the tag names to which you want the script applied: */
img, div { behavior: url(iepngfix.htc) }
/* Alternatively, you can specify that this will apply to all tags like so: * { behavior: url(iepngfix.htc) } */
</style>

Once you strip out the comments you will notice we are down to a single line of CSS that is IE specific. That's it. This did appear to have a slight lag time (unlike sleight), but definitely nothing prohibitive. Definitely something I will be testing out. Thanks to the Wired Monkey Bites blog (who also mention a solution for PNG image maps as well)

If this isn't fixed with IE7, I'm probably not going to bother to upgrade.

Unfortunately it doesn't appear to support repeatable backgrounds. :(

I believe this has similar limitations to other solutions:
* Can't help IE versions prior to 5.5
* Users can't right-click-save processed PNG images, they'll save the blank GIF file if they try that. In some cases this might be a feature, not a bug...
* It's most reliable on elements with non-'auto' dimensions set. So, give images and other elements width/height values; '100%', '10em' and '200px' and so on are all OK.
* Background PNG images can't be tiled. This is a limitation of the IE filter.
* Similarly, padding and borders don't indent the PNG image. An easy fix for this is wrapping your PNG images in container DIVs or similar.
* There may be about a short time as soon as the image loads when images are not transparent, before the IE filter kicks in.

"background-position" doesn't work either with this one. I tried positioning a small background image to the bottom right corner and it stayed at the top left one.

It does not work for me (IE 6) ....

I found a similar solution somewhere else, which works great. Regarding the comment above about the short flicker, I notice that if you include the CSS directly on a page that you dont get it, if it's in an external css file then you'll get the flicker.

Thought it might help!