Comment 4 for bug 229649

OK Upgrading just the server solved the issue. There was no need to upgrade the windows client for this particular issue (although I'll do that anyway)

Just for the real amateurs amongst us (me included)

Here's what I did to install the latest version:

Checked version name of Ubuntu: Gutsy Gibbon (not Intrepid yet!)

Added following repository at the _top_ of /etc/apt/sources.list

deb http://ppa.launchpad.net/bzr/ubuntu gutsy main
deb-src http://ppa.launchpad.net/bzr/ubuntu gutsy main

apt-get update
apt-get remove bzr
apt-get install bzr
[answer y to the the following warning]
WARNING: The following packages cannot be authenticated!
Install these packages without verification [y/N]? y

thanks!