Snort Problem - WInXP

Hey everyone,

I am running WinXP Pro and I am unable to make Snort display the
packets going to and fro from my box. Its not like there isn't any
data moving. Its just that Snort doesn't know.
I use a dial-up connection. I use Google with the switches -v -b -e
-d and it starts normally. I am using SNort v2.0.0 and WinPCap3.01A

When it starts it says this

--==Initializing Snort ==--
Initializing Output Plugins!
decoding Ethernet on interface \Device\NPF_{...}

--==Initialization Complete ==--

-*> Snort! <*-

{Some messages - author, etc.}

Then it shows absolutely no output.

Then when I end it with Ctrl-C, it says
pcap_loop: read error: PacketReceivePacket failed
pcap_stats: PacketGetStats error: The handle is invalid.
Snort exiting

What do you think is wrong. I have not modified any of the initial
config files or anything else. I'm running it straight out of the box.

I think maybe its not detecting my interface correctly. Can anyone
help me. What config file to change.

This same Snort package ran fine on my Win'98 machine.

Thanks a ton,
Nikolai Pereira