Put activeCollab to SysTray & and add to system starup,
Make it more usability.

Step by step guide:
1,Download Teabrowser & install http://www.teabrowser.com/tea/TeaBrowser.zip or http://groups.google.com/group/teabrowser/web/TeaBrowser.zip?hl=en
2,Edit file INSTALL_DIR\index.html. set location to your activeCollab url.
done.

Even,If you are a javascript developer,you can create icq-style remainder window for activeCollab,
you can write javascript run in background.