PNG =?ISO-8859-1?Q?isn=B4t?= correct in mozilla

[Feagliir]

Hello all,

There is one bug...
I don�t even know if it�s a bug ;)
the PNG-grafic should have a transparent-index, but in Mozilla, there is 
  just the original index, it�s ignoring transparence.
I�m right?

Greets Feagliir