Firefox 3.03 and PNG images

[Carlos Alberto Alves]

Does anybody know why Firefox 3.03 under Gutsy Gibbon does not show PNG 
images from websites? Firefox 2.0.0.17 shows those images without any 
problems.
TIA,
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* Carlos Alberto Alves                       *
* mailto:drcaa at click21.com.br                *
* mailto:drcaa at predialnet.com.br             *
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