> I think the problem may be due to my older version of ImageMagick.
ImageMagick works fine. The problem is in how tex4ht is configured.
> ----------------------------
> tex4ht.c (2004-10-23-18:53 Windows MiKTeX)
> tex4ht demoarticle.tex
> ] [2] [3] [4
> Renaming `cmmi12____.png' to `hzfx____.png'
The above comment is wrong regarding the output format and can be
ignored. I fixed the source tex4ht.c to provide correct notices. The
comment has no bearing on the output format.
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> % tex4ht.env (MiKTeX 2.4.1771) %
> % Copyright (C) 1997--2004 Eitan M. Gurari %
> <convert>
> G.png
> Gif exist zz%%4.ps DEL zz%%4.ps >nul
> Gif exist %%3 DEL %%3 >nul
> Gdvips.exe -E -q -Ppdf -f %%1 -pp %%2 > zz%%4.ps
> Gmgs.exe -sDEVICE=pngalpha -sOutputFile=%%3 -r110x110 -dEPSCrop
> -dBackgroundColor=16#ffffff -dTextAlphaBits=2 -dGraphicsAlphaBits=2 -q
> -dbatch -dNOPAUSE zz%%4.ps -c quit
> Gif exist zz%%4.ps DEL zz%%4.ps >nul
> G.
> Gif exist zz%%4.ps DEL zz%%4.ps >nul
> Gif exist %%3 DEL %%3 >nul
> Gdvips.exe -Ppdf -mode ibmvga -D 110 -f %%1 -pp %%2 > zz%%4.ps
> Gconvert.exe zz%%4.ps -trim +repage -density 110x110 -transparent "#FFFFFF"
> %%3
> Gif exist zz%%4.ps DEL zz%%4.ps >nul
> </convert>
Can you try in tex4ht.env the following code segment instead of the above one.
<convert>
Gif exist zz%%4.ps DEL zz%%4.ps >nul
Gif exist %%3 DEL %%3 >nul
Gdvips -E -Ppdf -mode ibmvga -D 110 -f %%1 -pp %%2 > zz%%4.ps
Gconvert zz%%4.ps -trim +repage -density 110x110 -transparent "#FFFFFF" %%3
Gif exist zz%%4.ps DEL zz%%4.ps >nul
</convert>
> g.png
Also, in tex4ht.env, replace the above record with
g.jpg
Note: the G and g records shouldn't contain leading spaces.
It might also be worth noticing that tex4ht got quite a few
improvements since 2004:
http://www.cse.ohio-state.edu/~gurari/TeX4ht/bugfixes.html
=> [1 Mar 05] [12 Nov 04]
-eitan