http://bugs.winehq.org/show_bug.cgi?id=10237
Summary: Save for Web as PNG entry field quirky in Photoshop 7 Product: Wine Version: CVS/GIT Platform: Other OS/Version: other Status: NEW Keywords: download Severity: normal Priority: P2 Component: wine-misc AssignedTo: wine-bugs@winehq.org ReportedBy: dank@kegel.com
http://rocr.xepher.net/weblog/archives/002146.html says "Save For Web is a little bit quirky when you try to save as PNG (the entry field for entring the number of colours doesn't work too well)"