Getting rid of OpenAFS/Win tray icon

Hi,

I have installed Kerberos (3.2.2) and OpenAFS (1.7.21). Now I have 2
Tray Icons which do exactly the same: Opening the Network Identity Manager:

http://snag.gy/MDDM7.jpg

How can I get rid of at least one?

As you can see I already use the hiding feature for the tray icons but I
still find the icon annoying and redundant.

Somewhere in the internet I read that there should be a checkbox for
this in the "AFS Client Condifuration". But in my case, there is nothing:

http://snag.gy/2Jxer.jpg

Is there a registry key or similar to get rid of this icon?

Thanks
Luke

PS: I can uncheck "Run from taskbar notification area after window
close" to get rid of both icons but then I have problems when my ticket
expired.