I’m trying to install gcc from the FC3 DVD. When I do so it gives me a Packages not Found screen
Unlocatable Package Required by
glibc (‘glibc-common’, 2.3.3’, ‘74’)
glibc-common (‘glibc’, ‘2.3.4’, ‘2.fc3’)
I guess you're running system-config-packages? Have you updated your system in any way since it was originally installed (e.g. by using yum, apt or up2date)?
Try just using "rpm" instead and see if you get more useful error messages:
# rpm -Uvh /media/cdrom/Fedora/RPMS/gcc-3*
Paul.