I see this is fixed:

http://bugzilla.zimbra.com/show_bug.cgi?id=10829

and near as I can tell it was reported in 4.0.2. I am running 4.0.4_GA_457 on Fedora Core 5.

It's not clear to me from the bug report which version it is fixed in. I'd upgrade if I figure out how to get that release.

In the meantime, is there a workaround?

Thanks,

-rob