Comment 2 for bug 1040752

I had that behaviour when using the 0.8-series version in the repo's.
The notification was was there, but there was no icon, so only when I directly clicked on it would it appear.

I uninstalled that, downloaded the 0.9-series from backports and did a "dpkg -i" on the .deb file
after logging out and back in, I now have the little sparkleshare icon, including the spinner when items are syncing.

I still do not, however have the Nautilus integration even though the plugin is present at /usr/share/nautilus-python/extensions/sparkleshare-nautilus3-extension.py

Launching nautilus from a terminal window shows the dropbox plugin loading, but not the sparkleshare one.
Ubuntu 12.04.1 LTS with kernel 3.2.0-30-generic x86_64 running Gnome-Shell 3.4.1