Problem with postscript

Below is the error report from MikTeX.  I generated two postscript drawings with
pstricks.  If both drawings are on the first page, yap has no problem.  If I put a 
    \pagebreak
between the first and second drawing yap generates the error report.  However, the DVI
file is correct and I can generate a postscript file with 
    dvips
and then a pdf file with
    ps2pdf
to correctly view the file.
-- 
Wojciech Komornicki                                                   Dept of Mathematics
wnk at hamline.edu                                                     Hamline University
http://wnk.hamline.edu/~wnk/                                            St Paul, MN 55104
                                                                                      USA

The goal of collegiate mathematics is the understanding of mathematical ideas per se. The
role of applications is to enhance that understanding and not vice versa.
                                                                         Saunders MacLane

     MiKTeX Problem Report
     Message: Some PostScript specials could not be rendered.
     Data: Error: /undefined in tx@Dict
     Operand stack:
        --nostringval--   PermitFileReading   --nostringval--   PermitFileWriting   --nostringval--
     Execution stack:
        %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1914   1   3   %oparray_pop   1913   1   3   %oparray_pop   1897   1   3   %oparray_pop   1787   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--
     Dictionary stack:
        --dict:1166/1684(ro)(G)--   --dict:0/20(G)--   --dict:78/200(L)--   --dict:95/300(L)--   --dict:37/200(L)--
     Current allocation mode is local
     MiKTeX GPL Ghostscript  9.00: Unrecoverable error, exit code 1

     Source: Libraries\MiKTeX\Dvi\Ghostscript.cpp
     Line: 372
     MiKTeX: 2.9
     OS: Microsoft Windows 7 Business Edition, 64-bit (build 7600)
     Invokers: emacs/tcc
     SystemAdmin: yes
     PowerUser: no
     Root0: C:\Users\wnk\AppData\Roaming\MiKTeX\2.9
     Root1: C:\Users\wnk\AppData\Local\MiKTeX\2.9
     Root2: C:\ProgramData\MiKTeX\2.9
     Root3: C:\Users\wnk\AppData\Local\texmf
     Root4: C:\Program Files (x86)\MiKTeX 2.9
     UserInstall: C:\Users\wnk\AppData\Roaming\MiKTeX\2.9
     UserConfig: C:\Users\wnk\AppData\Roaming\MiKTeX\2.9
     UserData: C:\Users\wnk\AppData\Local\MiKTeX\2.9
     CommonInstall: C:\Program Files (x86)\MiKTeX 2.9
     CommonConfig: C:\ProgramData\MiKTeX\2.9
     CommonData: C:\ProgramData\MiKTeX\2.9

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