[Wlug] driftnet

I just installed driftnet (http://www.ex-parrot.com/~chris/driftnet/) on a whim, but I can't seem to get it to show me any graphics, and I'm fairly sure there is some going by. I'm running RedHat 7.1. Here's the command I'm running as root: ./driftnet -v -i eth0 I get a blank pop-up, and the command window shows that it's seeing traffic. TIA, Bill