Hello Bogomil, thanks for your quickly answer. Short question: Only upgrade kolab-z-push to 0.7.3 whitout upgrade z-push to 1.5? Thanks, Thomas Nintemann Am Montag, 17. Januar 2011, 13:05:39 schrieben Sie: > Please upgrade to 0.7.3 and delete your cache file (before that). The > problem is known and it's solved.