After I upgrade to ZCS 3.1.3_GA_474.SuSE10_20060609163044 I ecountered some errors:
1) It has change my domain to instead of my real domain
2)change my admin to
3) I still have problems with warning: do not list domain in BOTH mydestination and virtual_mailbox_domains
4) every time i restart postfix it says warning main.conf no own by root, I check the sudoers permision and there are 0640 as in other post has been resolve this issue

What can I do to resolve all this errors??

some good things
1) it consumes less cpu usage than 3.1.2, about 25 % less
2) errors like tomcat or postfix stopping has been resolve

congratulations ZCS is getting better with every released
good job