run the registry editor. for xp: start-run-regedt32
browse to the key, right click in the right panel and add a character string. Name it avast! en give it a value of C:\Program Files\Alwil Software\Avast4\ashDisp.exe or wherever you installed avast and after a reboot the ball will be back. at least in my case it did.
Peter
from avast faq
Q: The blue ball icons have disappeared from my system tray. How do I get them back there?
A: If you´re using Windows XP, the icons are probably hidden. In that case right-click on your Taskbar and choose Properties. A dialog box “Taskbar and Start menu properties” would appear. Then uncheck Hide inactive icons check box.
If you´re not using Windows XP, OR if the previous solution doesn’t fix the problem, run the ashDisp.exe program (it´s in C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4 directory). It should bring the icons up again. If they disappear after restart again, make a shortcut to the ashDisp.exe file in your Start-up folder.
Not sure why you are responding to a topic that hasn’t had any activity for over a year.
About the two avast! balls dissapearing, I had the same problem but found out by myself that SUPERantispyware was preventing Avast! to start up, because SUPERantispyware has a scanner that prevents some programs to load at startup. I deleted SUPERantispyware, reinstalled Avast!, and all was well. If you have SUPERantispyware and have been having problems with Avast!, you might want to delete SUPERantispyware.
I have SuperAntispyware and I have my icons, just ensure it isn’t running on start-up and ensure you check your preferences/options, Start superantispyware when windows starts. This way I use it as an on-demand scanner only.
If you are using the Real-Time Protection uncheck 'scan startup locations in registry when system starts. Tat way you can continue to use superantispyware without the loss of the avast icons, report it to superantispyware.
Me too…
Yeah, on-demand only is very good 8)