[ethereal-users] Error opening adapter

["Quick, Edward T" <Edward.T.Quick@xxxxxxxxxxxxxxxxxx>]

Hi,

I have just installed Ethereal for Windows NT, but when I try to start the Capture I get the following error msg:

Ethereal: Warning

The capture session could not be initiated (Error opening adapter).
Please check to make sure you have sufficient permissions, and that
you have the proper interface specified.

As far as permissions go, I have administrator permission so that can't be the problem. The only other thing I can see is the
interface setting in Capture Preferences which seems to get set to this by default:

Interface: \Device\Packet_IbmTok41

Could you tell me how I can round this please?

Thanks,

Edward.