up2date -u got RPM package conflict error.

[Kevin]

I have created a rh9 server yesterday (installed everything).After installation completed,I use up2date to get updates.
There's about 200 patches have been download. When up2date install the 159 patches, the system halted of hardware error.
I think the problem is conflict of 2 memory banks.
After I remove one of the memory banks,I run up2date again, got the error:
"
RPM package conflict error.  The message was:
Test install failed because of package conflicts:
package mozilla-1.4.2-0.9.0 is already installed
"

Since 159 of 200 patches have been installed,I do not want to use package-skip-list to skip all of them nor uninstall them.
Never think of reinstall the system, anyone can help me?