Mrthfx

I am using RevTeX4-1. When I typeset the original file, compile the bibliography, and then try to typeset the original file again, I get an error: "! Undefined control sequence. < argument> @bibitemShut." Below is a minimal file with which I get the error, followed by the test .bib file that I used, and then followed by the .bbl file it outputs. Can anyone help? (I am using PcTeX, which I purchased many years ago and no longer seems to have much support available, but which I am very used to. Perhaps this is my problem but I am hoping not, because I'd prefer not to have to get used to a whole new interface.) I will also mention that when compiling the bibliography, I do get a warning but am guessing this is not the problem. The warning is this:

Warning--jnrlst (dependency: not reversed) set 1



merlin.mbs apsrev4-1.bst 2010-07-25 4.21a (PWD, AO, DPC) hacked



Control: key (0) 



Control: author (8) initials jnrlst



Control: editor formatted (1) identically to author



Control: production of article title (-1) disabled



Control: page (0) single



Control: year (1) truncated



Control: production of eprint (0) enabled



(There was 1 warning)

Here is my minimal tex file:

documentclass[pra]{revtex4-1}



begin{document}



maketitle



Here's one citation cite{Ref1}, and now another one cite{Ref2}. 



bibliography{Testrefs}



end{document}

And here is my bib file:

@ARTICLE{Ref1,

    AUTHOR={Someone1a and Someone1b},

    TITLE={Title1},

    JOURNAL={Journal1},

    VOLUME={44},

    PAGES={5555},

    YEAR={1999}

}



@ARTICLE{Ref2,

    AUTHOR={Someone2a and Someone2b},

    TITLE={Title2},

    JOURNAL={Journal2},

    VOLUME={55},

    PAGES={7777},

    YEAR={2000}

}

In case it is useful, here is the bbl file created when I compile the bibliography:

%merlin.mbs apsrev4-1.bst 2010-07-25 4.21a (PWD, AO, DPC) hacked

%Control: key (0)

%Control: author (8) initials jnrlst

%Control: editor formatted (1) identically to author

%Control: production of article title (-1) disabled

%Control: page (0) single

%Control: year (1) truncated

%Control: production of eprint (0) enabled

begin{thebibliography}{2}%

makeatletter

providecommand @ifxundefined [1]{%

 @ifx{#1undefined}

}%

providecommand @ifnum [1]{%

 ifnum #1expandafter @firstoftwo

 else expandafter @secondoftwo

 fi

}%

providecommand @ifx [1]{%

 ifx #1expandafter @firstoftwo

 else expandafter @secondoftwo

 fi

}%

providecommand natexlab [1]{#1}%

providecommand enquote  [1]{``#1''}%

providecommand bibnamefont  [1]{#1}%

providecommand bibfnamefont [1]{#1}%

providecommand citenamefont [1]{#1}%

providecommand href@noop [0]{@secondoftwo}%

providecommand href [0]{begingroup @sanitize@url @href}%

providecommand @href[1]{@@startlink{#1}@@href}%

providecommand @@href[1]{endgroup#1@@endlink}%

providecommand @sanitize@url [0]{catcode `\12catcode `$12catcode

  `&12catcode `#12catcode `^12catcode `_12catcode `%12relax}%

providecommand @@startlink[1]{}%

providecommand @@endlink[0]{}%

providecommand url  [0]{begingroup@sanitize@url @url }%

providecommand @url [1]{endgroup@href {#1}{urlprefix }}%

providecommand urlprefix  [0]{URL }%

providecommand Eprint [0]{href }%

providecommand doibase [0]{http://dx.doi.org/}%

providecommand selectlanguage [0]{@gobble}%

providecommand bibinfo  [0]{@secondoftwo}%

providecommand bibfield  [0]{@secondoftwo}%

providecommand translation [1]{[#1]}%

providecommand BibitemOpen [0]{}%

providecommand bibitemStop [0]{}%

providecommand bibitemNoStop [0]{.EOSspace}%

providecommand EOS [0]{spacefactor3000relax}%

providecommand BibitemShut  [1]{csname bibitem#1endcsname}%

letauto@bib@innerbib@empty

%</preamble>

bibitem [{citenamefont {Someone1a} and citenamefont

  {Someone1b}(1999)}]{Ref1}%

  BibitemOpen

  bibfield  {author} {bibinfo {author} {bibnamefont {Someone1a}} and

  bibinfo {author} {bibnamefont {Someone1b}}, }href@noop {} {bibfield

  {journal} {bibinfo  {journal} {Journal1} }textbf {bibinfo {volume}

  {44}}, bibinfo {pages} {5555} (bibinfo {year} {1999})}BibitemShut

  {NoStop}%

bibitem [{citenamefont {Someone2a} and citenamefont

  {Someone2b}(2000)}]{Ref2}%

  BibitemOpen

  bibfield  {author} {bibinfo {author} {bibnamefont {Someone2a}} and

  bibinfo {author} {bibnamefont {Someone2b}}, }href@noop {} {bibfield

  {journal} {bibinfo  {journal} {Journal2} }textbf {bibinfo {volume}

  {55}}, bibinfo {pages} {7777} (bibinfo {year} {2000})}BibitemShut

  {NoStop}%

end{thebibliography}%