[OS X TeX] plain-TeX graphics problem with TeXShop 1.20 / OS 10.2

[Bernd Thaller]

I just installed the new versions of Gerben Wierda's teTeX distribution and
TeXShop v.1.20. I'm using the macros provided in TeXShop's 
distribution in the folder "TeXShop_Folder/Graphics_In_Plain_TeX".
Now the file example.tex in that folder in does not work correctly any more.
Typesetting (with plain TeX) produces the following messages:

---
This is pdfTeX, Version 3.14159-1.00b-pretest-20020211 (Web2C 7.3.7x)
(./example.tex{/usr/local/teTeX/share/texmf.local/pdftex/config/pdftex.cfg}
Babel <v3.7h> and hyphenation patterns for american, french, german, ngerman, d
utch, nohyphenation, loaded.
(./graphicx.tex (./miniltx.tex)
(/usr/local/teTeX/share/texmf/tex/latex/graphics/graphicx.sty
(/usr/local/teTeX/share/texmf/tex/latex/graphics/keyval.sty)
(/usr/local/teTeX/share/texmf/tex/latex/graphics/graphics.sty
(/usr/local/teTeX/share/texmf/tex/latex/graphics/trig.sty)
(/usr/local/teTeX/share/texmf/tex/latex/config/graphics.cfg)
(/usr/local/teTeX/share/texmf/tex/latex/graphics/pdftex.def
(/usr/local/teTeX/share/texmf/tex/context/base/supp-pdf.tex
(/usr/local/teTeX/share/texmf/tex/context/base/supp-mis.tex
loading : Context Support Macros / Missing
)
loading : Context Support Macros / PDF
Runaway argument?
\par
! Forbidden control sequence found while scanning use of \beginETEX.
<inserted text>
                 \par
<to be read again>
                    \newdimen
l.1284   \newdimen
                   \MPcriteriumA \MPcriteriumA=512pt
? ! Undefined control sequence.
l.1287 \endETEX
               
?
---

Typesetting can be resumed after this and the pdf-output appears to be correct.
Any ideas?

Bernd Thaller

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