Problem with GRASS4.1

Hi!
I installed grass4.1 on a Pentium-133 running a red hat linux 4.1.
When I try to run the program typing grass4.1 I received the folowing
errors messages:
"/usr/grass/etc/lock: can't find library 'libc.so.4'"
"Unable to properly access /root/.gislock"
Does anyone help me?
Thanks in advance.

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Francisco Edson M.Gomes
e-mail: edsong@secrel.com.br
Fortaleza, Ceara - BRAZIL