Missing system tray icons

-----Original Message-----
Some system tray icons are missing. Seems to be random,
at times they are present at boot, at other times
roughly
half are missing.

The autohide feature seems to have no impact.

Rebooting does not help.

Is there a way to refresh the list?

.
right click on the taskbar,click properties,check the
hide inactive icons box, then click the customize
box,then left click on each of the items and arrow down
to always show , from hide when inactive.then OK and
apply.then they'll all show all the time.