Comment 166 for bug 332945

Thanks, Michael, now the picture is getting clear to me. I thought the functionality thus far was that update-manager just appeared under all windows (there was some discussion about a pop-under), showing up only after all windows have been closed or its taskbar button has been clicked. The reason why I didn't know was that as updmanager showed no trace at my PC at all since my Jaunty upgrade, thus I got used to checking for updates manually every day.

So if the taskbar button really gets some kind of a flashing effect then it's a good approach indeed.