[CentOS] tcpdump?

Did the latest Centos4.x kernel break the ability to tcpdump with any 
amount of traffic?  Machines that used to be able to keep up now show a 
few packets and stop - if you hit ^C they take a  minute or so to do 
anything, then show something like:

54 packets captured
18188 packets received by filter
18070 packets dropped by kernel

Before recent updates I almost never saw packets 'dropped by kernel'.

-- 
   Les Mikesell
    lesmikesell at gmail.com