Hi. I have a copy of the BitDefender 2009 software installed on three computers. After a major update a few days ago, one of the computers stopped displaying the BitDefender system tray icon. It still appears to work but the icon is missing. All the BitDefender services are working and all the files are loading at startup. I tried performing a repair install as well as a complete removal and install but it did not help. The problem keeps on reoccurring right after the last major update where the computer is prompting to reboot. The other two computers don't have this problem. All the computers are running Windows XP. If you can suggest any fixes for this I would appreciate it. Thanks in advance for any advise.