problems with r.param.scale

[DIETER LEHMANN]

Dear GRASS-users,

I have a problem running r.parm.scale. Every time I try to run this 
module an error occurs after counting to 100%.  

segmentation fault

My DGM I use is o.k. I run other modules (like r.sun...) on the 
testdata.

My system is a Pentium 200 with linux and grass4.2.1 V18 (linux 
binaries from Markus - Thanks a lot!)

Another question:
r.in.tiff don't work on my computer: Error message: can't load libary 
'libjpeg.so.6' 
Where I can get this libaries and where I have to put them? 

And my last question: is there a script availiable for importing 
arc/info tiff-files (like the export-script r.out.arctiff)


Many thanks in advanced for any suggestion.