[newbie] glib and RPM problem

[Ray Wingler]

I have been trying to upgrade to the newest glib and gtk+ packages,
but keep getting errors regarding conflicts with the older glib package.
I uninstalled the earlier version and now(of course)can't start Linux.
Iam resigned to re-installing now, but how do I avoid this problem in
the
future? How do you uninstall vital libraries in order to upgrade without
upsetting the whole system?
Thanks,
Ray