No CIS icon (& maybe other icons) in the system tray

Windows XP
Please see this CAS help item here.

Windows 7
Win 7 has a tendency to untick “always show all icons and notifications in the task bar”. Right click right at the botton of the system tray ~ choose properties ~ then taskbar tab ~ click notification area/customise button and tick “always show all icons and notofications in the task bar” ~ click OK. Then reboot.