I now think it is because of "rowspan"

c++ in url, just remove it.

grep -i c++ !$
sed 's/c\+\+/cpp/g' < !$ > new-!$

Another case that html2ps fails: another book from mcp. After an extensive delete and try. I found out that the html2ps can't handle the tag:

<HR ALIGN=CENTER>

after changing it to <HR>, it works perfect.

Command to change them all:

ls *.htm | doeach.pl "perl -i -pe" '@"s/<HR ALIGN=CENTER>/<hr>/@"'  @_

html2ps recognize the line

<!-- <BASE HREF="http://www.pbs.mcp.com/ebooks/1575211750/"> -->

so, better change it before doing a -W b operation. I just changed it to

<!--  BASE HREF="http://www.pbs.mcp.com/ebooks/1575211750/"  -->

html2ps -2 -L -C h -W b -T index.htm > apache.ps 2>err_log
ghostview apache.ps &
lpr -C"letter hduplex" -m apache.ps &