Unable to send message after adding signature

[avery]

Hello!

I have found strange issue.

I'm using Zimbra Open Sourse editiond and Zimbra Desktop 2 beta 3 and beta 4
All works fine exept signatures.

When I add signature all works fine untill restart Zimbra Desktop.

After restart Zimbra Desktop I see my mailbox collapsed (atteched zd_fail.jpg)
And I can't create new message or reply.
I see no signatures in Settings since that.
Restart Zimbra Desktop doesn't help.

If I delete in Zimbra Desktop and set it up again, Zimbra Desktop works well untill restart. After restart I can't create message again.
Account becomes "broken" since i tried adding signature.
I have tried this with different accounts on different computers.

I'm using:
zimbra@mail:~> zmcontrol -v
Release 6.0.6_GA_2324.SLES11_64_20100406160604 openSUSEUNKNOWN_64 FOSS edition.

and Zimbra Desktop 2 beta3 and beta 4


How can i fix that?
Thanks!