Windows 7: Notification tray icons strange behavior

Several of my notification tray icons (gotten to by clicking the up arrow-->customize) are odd. CCleaner is listed but it has the Java icon. Windows Task Manager has no icon next to it. There is one listed, hpvncwin4.exe, that has the FreeAgent icon and I can find no description of what this is by Googling. It just showed up in the last day. That worries me a bit.

Why exactly do these get corrupted?

I tried running CCleaner "Tray Notifications Cache" and it found nothing to clean.

Should I care? Should I reset using this tutorial (I'm not sure I understand about killing explorer.exe)?

Notification Area Icons - Reset

Or how about this one, found it here too:

http://forums.orumph.com/viewtopic.php?f=6&t=6

Hi bru,

Following the tutorial yo posted above should help. Killing explorer.exe means that Windows Explorer (which includes your taskbar and system tray), is shut down. The .bat file in the tutorial will then restart explorer.exe before restarting the system. It won't harm your computer in any way so I suggest you try it.

Hope this helps,
Jaidyn

Used the tool. Notification tray has been reset. Nice!

Next time, use Ccleaner. Check the "clear tray notifications box" in Ccleaner, and run Ccleaner. Open task manager. Highlight explorer.exe, and then kill process. With task manager still open, hit file, then new task (run), then type in explorer.exe and hit run. Your tray is now clean.

I'm glad it worked.

Do you mean Tray Notifications Cache under Advanced? If so when I did that CCleaner found 0 files.