Thank you Michael Schumacher for helping me on the IE transparent pixel problem last time.
Now I have a question: is it possible to create a png file with indexed
color, with transparent pixels, while still have an alpha channel, so
that the png file display alpha channel on cool browsers like Mozilla,
while display transparent pixels on some inferior browser like IE as a
fall-back mechanism? If GIMP cannot do it, can it be done in theory?
I know the question might be silly, because I can dig it out by RTFM.
But I just wish a quick answer so I don't have to waste time on
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