[magick-users] Cannot convert from EPS to JPEG

[Masataka Taguchi]

Hello, 

 I tried to update ImageMagick from 5.2.4 to 6.2.3.(on AIX4.3.3)

but (after I've updated) specific EPS file( not all EPS file) cannot 
convert to JPEG.

Ｔｈｅ Command I executed was follow.

#convert  a.eps  test.jpeg

<error-message>
convert: no decode delegate for this image format a.eps

<I installed following software to update ImageMagick.>
ImageMagick.6.2.3
libpng.1.2.8
libxml2
ghostscript(Ver8.51)
ghostscript_fonts_std
ghostscript_fonts_other

I found that a conversion result changes with versions of the Illustrator 
of EPS file creation origin. 

<conversion result matrix>

Conversion ＯＫ
Conversion ＮＧ
ImageMagick(5.2.4)
Adobe Illustrator(R) 8.0
Adobe Illustrator(R) 8.0.1
Adobe Illustrator(R) X
Adobe Illustrator(R) 11.0.1
Adobe Illustrator(R) 12.0.0
ImageMagick(6.2.3)
Adobe Illustrator(R) 8.0
Adobe Illustrator(R) 8.0.1
Adobe Illustrator(R) 11.0.1
Adobe Illustrator(R) 12.0.0
Adobe Illustrator(R) X


What thing could be considered as a cause.

Thank you  for your help.