Ubuntu One crashes while updating files

Binary package hint: ubuntuone-client

This is related to Bug #502717 and Bug #502900. I don't know how to link this report to them.
Package version is 1.0.2 ubuntu2.
The sync daemon has been working for hours (>8) using 80-100% CPU, but almost no network traffic. And I went to sleep. When I came back the next morning, the "!" mark was on the icon and when I clicked on it crashed.
So, I am not sure the problem is not in the daemon instead, but have no other clue.
The initial subscription and upload of 500MB of files went alright a couple weeks ago. I have subscribed to the 50GB and now no way to update. I was trying to add/update 15 GB: is UbuntuOne unable to handle the load?
One last info: if memory serves there was a dialog box indicating progress of sync operations the first time. Now on all attemps I only have the icon and the system monitor to show the sync daemon is supposed to be working hard (80-90%).
Have reinstalled all UbuntuOne packages.
I have seen in another report that a version 1.0.3 was made available, but have not succeeded in getting to it.
Please; What should I do next?

ProblemType: Bug
.home.fg..config.ubuntuone.ubuntuone.client.conf:
 [ubuntuone]
 connected = True
 connect = 2
 show_applet = 0
 bookmarked = True
Architecture: i386
Date: Tue Jan 5 10:52:17 2010
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: wl
Package: ubuntuone-client 1.0.2-0ubuntu2
PackageArchitecture: all
ProcEnviron:
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
SourcePackage: ubuntuone-client
Tags: ubuntu-unr
Uname: Linux 2.6.31-16-generic i686