Networkmanager doesn't trigger the gear

Hello,

I have problems connecting to my wireless network with networkmanager.

I have a Dell D620 with an Intel 3945 wireless adapter:

lspci:
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

I tried openSuse-11.2 and 11.3, both behave the same way (under KDE):
When I click on the Networkmanager Icon, I can see my wired network eth0 as
“avtive” and when I click on it this changes to “activating” and then “active” again
when the connection has been reestablished.

When I click on my configured wireless network wlan0 nothing happens.
It doesn’t even seem to be clickable.
With older Suse versions at least the gear in the task bar started running
whether it could finish successfully or not.

The weird thing is, that a scan (either “iwlist scan” or from within networkmanager
setting up a wireless connection) shows all my wireless networks around,
but “iwconfig” doesn’t know much:

wlan0 IEEE 802.11abg ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

When I change with yast from networkmanager to “traditional method with ifup”
“iwconfig” looks like this (edited to anonymize):

wlan0 IEEE 802.11abg ESSID:“my-wireless”
Mode:Managed Frequency:2.472 GHz Access Point: 00:00:AA:CC:44:EE
Bit Rate=5.5 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:1111-2222-3333-4444-5555-6666
Power Management:off
Link Quality=24/70 Signal level=-86 dBm Noise level=-127 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

and I get an IP-number!

How can I setup networkmanager to work too? (As it does in older Suse versions)?

Thank you!