IM doesn't work in 2nd domain

[dreamgear]

I set up Zimbra initially with one domain, and then added a second domain. Email works fine with that domain, but some reason the IM doesn't work. If I click the IM tab and then click the "+" icon to create a buddy, it auto-complete the names of users I've added to that domain, but when I click Ok, nothing happens and the buddy list stays empty.

IM works fine for users in the initial domain.

I'm running zcs-5.0.18_GA_3011.RHEL5.20090707164432

[dreamgear]

A restart seemed to fix this.