Kismet problem

Hello all, sorry for the OT,
I'm having a strange problem during kismet startup
look here please:

Listening on port 2501.
Allowing connections from 127.0.0.1/255.255.255.255
Allowing connections from 192.168.1.0/255.255.255.0
Gathering packets...
*** Here it is the error ***
FATAL: capture child 3986 packet buffer empty and flagged as diseased,
exiting
*** ( ***
Shutting down source 0 (cisco)...
Didn't detect any networks, unlinking network list.
Didn't detect any networks, unlinking CSV network list.
Didn't detect any networks, unlinking XML network list.
Didn't detect any Cisco Discovery Packets, unlinking cisco dump
Didn't capture any packets, unlinking dump file
Didn't see any weak encryption packets, unlinking weak file
Waiting for capture child 3986 to terminate...
Kismet exiting.
FATAL: Could not connect to 127.0.0.1:2501.

I'm using a Cisco Aironet 352PCM with kernel 2.6.1-rc2 (the result
with 2.6.0 was the same btw), i think the last FATAL is a normal
consequence of the first error:

FATAL: capture child 3986 packet buffer empty and flagged as diseased,
exiting

And I really don't have idea why it's happening, can someone help
me please? Many many thanx! )))

Bonzo