GPG Verification error with XFree package

[Leena Romppainen]

Hi all

I'm running up2date in cron, and now I've been getting a message that 
GPG verification fails for package Free86-ISO8859-9-75dpi-fonts-4.3.0-55

I could of course just skip updating XFree packages and update the rest, 
but I was wondering if I should report cases like this? Maybe I should 
also use apt (familiar from Debian) or yum (I've tried it a couple of 
times) as a backup system

Relevant section of up2date output below

***********************
<snip>

Testing package set / solving RPM inter-dependencies...
XFree86-4.3.0-55.i386.rpm:   Retrieved.
XFree86-100dpi-fonts-4.3.0-  Retrieved.
XFree86-75dpi-fonts-4.3.0-5  Retrieved.
XFree86-ISO8859-14-100dpi-f  Retrieved.
XFree86-ISO8859-14-75dpi-fo  Retrieved.
XFree86-ISO8859-15-100dpi-f  Retrieved.
XFree86-ISO8859-15-75dpi-fo  Retrieved.
XFree86-ISO8859-2-100dpi-fo  Retrieved.
XFree86-ISO8859-2-75dpi-fon  Retrieved.
XFree86-ISO8859-9-100dpi-fo  Retrieved.
XFree86-ISO8859-9-75dpi-fon  The package 
XFree86-ISO8859-9-75dpi-fonts-4.3.0-55 does not have a valid GPG signature.
It has been tampered with or corrupted.  Aborting...

************ GPG VERIFICATION ERROR ****************
The package XFree86-ISO8859-9-75dpi-fonts-4.3.0-55 failed its gpg 
signature verification. This means the package is corrupt.
****************************************************

-- 
Leena