this is the section from that page
Question: Why don't my Notification Area icons show or why do they disappear?
Chevron is missing: For some users, setting the very first icon to Always Hide, restores the arrow/chevron. Note: It does time time for it to become effective.
Icons are missing or disappear, reappear:
This happens for most Auto-Logon users. Methods/workarounds: Log off and Log back on, password protect your account or disable SSDP and uPNP Services.
Disable SSDP and uPNP Services (Line 156)http://www.kellys-korner-xp.com/xp_tweaks.htm
Or if you are running XP SP1 uninstall UPnP from Add/Remove Windows Components.
Hide or Show Inactive Icons in the Notification Area (Line 53) http://www.kellys-korner-xp.com/xp_tweaks.htm
Remove Past Items From the Notification Area (Line 53) http://www.kellys-korner-xp.com/xp_tweaks.htm
Once done, Open Task Manager, click the Processes tab, click Explorer.exe, and then click End Process. In Task Manager, click File, click New Task, type explorer, and then click OK.
Volume Control disappears: Save Settings on Exit (Line 54) http://www.kellys-korner-xp.com/xp_tweaks.htm
To use the Regedit: Save the REG File to your hard disk. Double click it and answer yes to the import prompt. REG files can be viewed in Notepad by right clicking on the file and selecting Edit.
Icons in the Notification Area May Disappear If You Use High-Contrast Color Themes in Windows XP http://support.microsoft.com/default.aspx?...B;en-us;q321213
Troubleshooting the Notification Area http://www.kellys-korner-xp.com/xp_n.htm#na
Troubleshooting the Volume Control Icon http://www.kellys-korner-xp.com/xp_v.htm#volume
Hide All Notification Area Icons (Line 134) http://www.kellys-korner-xp.com/xp_tweaks.htm
Edited by caperdog, 31 May 2010 - 08:19 PM.