node.js server port not working

So I am creating a simple server test on my Centos 5.x box and I am having troubles getting node.js to respond on my port:

var http = require("http");

http.createServer(function(request, response) {
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.write("Hello World");
  response.end();
}).listen(8888);

This is the standard copy/pasta test. I had it working last night, and it has since stopped working. I am running this out of /home/user/nodejs and do not get any compilation errors. There are no other node processes running either. Any ideas as to what could have happened between then and now? Any known quirky nodejs problems that may be associated with this?

edits:

• I have tested various ports
• The page simply times out

RHEL / Centos 5.8 / node v0.6.15