[pstricks] Help with pstricks

[joe agwu]

Hi,

While typesetting my latex file, I encountered the
following error message:

! TeX capacity exceeded, sorry [text input levels=6].
<argument>  \input keyval 
                          \expandafter \def \csname
ver at keyval.sty\en...
l.91 }{}


The latex package works fine without certain pstricks
packages.

I need some help please.

Nwojo Agwu
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