I tried to setup a filter exception for a network, I always get an "error on
page" error.
If I change the "Source Address Type" to "Host" I am able to create the
filter but I need the "Source Address Type" as a "Network"!

Please see this link for a screen shot with the error messages:
I use a German IE - sorry for the German messages.

I also included the error message from IE.

Configuration: NW 6.5 SP6, BM 3.8 SP5, iManager 2.6 SP6, IE 6.1 or IE 7.0 or
FireFox 2.0.1.
The same problem exists with Mobile iManager 2.6 SP2 but Mobile iManager
simply hangs on this screen.

Any ideas how to solve this problem?