Problem installing a package with yum

Hi guys,

Trying to install acroread, I get this:

Error: Could not find the GPG Key necessary to validate pkg
/var/cache/yum/kde-redhat-fedora-stable-all/packages/acroread-5.0.8-0.fdr.4.i386.rpm

Error: You may want to run yum clean or remove the file:
/var/cache/yum/kde-redhat-fedora-stable-all/packages/acroread-5.0.8-0.fdr.4.i386.rpm
Error: You may also check that you have the correct GPG keys installed

I've put:

rpm --import /usr/share/rhn* -all the keys-

and

rpm --import /usr/share/doc/fedora-release-1/* -all the keys-

and I've run:

yum clean

but nothing...any idea?

Regards,

-- 
Pablo Rodríguez González	
Director General
pablo.rodriguez@xxxxxxxxxxxxxx
iProyectos Desarrollos Tecnológicos