WEBrick not working

I'm heving problems with WEBrick.

When I start gem_server or rails script/server if starts, but he's
dead. Browsers finds it on http://localhost:8808 or
http://localhost:3000 and get stuck with "Waiting for localhost..."
message.

I can't stop it with Ctrl+C but need to kill cmd.exe including ruby
process.

Platform: Windows XP, ruby 1.8.2 (2004-12-25) [i386-mswin32], WEBrick
1.3.1

Any ideas?

PS: Sorry for my poor english.

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Ilija

Just a thought: could it be SP2's firewall causing you problems?