I tried doing a search but found this issue to be with FC4.
I'm using RHEL 4. I did all the updates (RHN) except the Kernel. When I try to install Zimbra it bombs out the point below. Essentially, I have /usr/lib/libstdc++.so.6 installed but Zimbra requires so.5. Is there a way around this? I called Red Hat and they told me that so.5 is an ES 3 package.
Checking for prerequisites...