A few module errors

[David Taylor <n9506769 garbo nepean uws edu au>]

I'm just wondering if someone can tell me what the following modules do
and why I am missing them?

can't locate module ppp0
can't locate module ppp-compress-21
can't locate module ppp-compress-26
can't locate module ppp-compress-24

Whenever I start a ppp session I am told the above error messages. 
However, ppp is compiled into the kernel and works just fine for me. 
Does anyone know why ppp modules would be missing when I have compiled
ppp support into the kernel?

Also, why on earth would I get these following messages every time I
mount a drive?

can't locate module nls_cp437
can't locate module nls_iso8859-1

If I am missing necessary modules that I need then I would assume that
certain features wouldn't work (such as ppp or mounting), yet they all
work perfectly.

All that I can imagine is that these wierdities are introduced when the
module dependencies are worked out... and that they're not errors at
all, just side-effects.

Any ideas?

Regards,
David Taylor.