The mpost program fails to work with the message below: $ mpost foobar This is MetaPost, Version 0.993 (Web2C 7.5.6) ---! /var/lib/texmf/web2c/metapost/mpost.mem doesn't match pool strings (Fatal mem file error; I'm stymied)
May I ask which version of texlive are you using?
$ rpm -q texlive-context texlive-context-2007-21.fc9.x86_64
Please update to the latest texlive-2007-23 and texlive-texmf-2007-16 where it should be fixed. Feel free to reopen if not.