Filters in aspell

Hi,
I have following problem:
> aspell --mode=sgml -a
Unhandled Error: The key "f-sgml-skip" is unknown.
Aborted
> aspell --mode=html -a
Unhandled Error: The key "f-html-skip" is unknown.
Aborted
> aspell --mode=texinfo -a
Unhandled Error: The key "f-texinfo-ignore" is unknown.
Aborted
> aspell --mode=perl -a
Error: /usr/lib64/aspell-0.60/perl.amf: The key "context-delimiters" is unknown.

but
pgajdos@laura:~/aspell> aspell --mode=nroff -a
@(#) International Ispell Version 3.1.20 (but really Aspell 0.60.6)
pgajdos@laura:~/aspell> aspell --mode=url -a
@(#) International Ispell Version 3.1.20 (but really Aspell 0.60.6)

Can you guess what I am doing wrong?
Petr

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