According to the documentation here, Novell Documentation it looks like the zen 10 agent installer should uninstall zen 7. When I run it on any of our computers with zenworks 7 installed it says it is uninstalling the previous zenworks agent, but it never does. The only way to make it work is to uninstall the zen 7 agent manually, reboot, and then run the preagent installer again. Has anyone seen this?