Problems to run examples in Meteor

I'm testing Meteor examples and this is what I see when I run `meteor` in todos examples: ``` Unexpected mongo exit code 100. Restarting. Unexpected mongo exit code 100. Restarting. Unexpected mongo exit code 100. Restarting. Can't start mongod. Check for other processes listening on port 3002 or other meteors running in the same project. ``` And this is what happens if I run `mongod` in the command line: ``` Thu Apr 12 19:27:39 Mongo DB : starting : pid = 2686 port = 27017 dbpath = /data/db/ master = 0 slave = 0 32-bit ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data ** see http://blog.mongodb.org/post/137788967/32-bit-limitations for more Thu Apr 12 19:27:39 db version v1.4.4, pdfile version 4.5 Thu Apr 12 19:27:39 git version: nogitversion Thu Apr 12 19:27:39 sys info: Linux murphy 2.6.32.14-dsa-ia32 #1 SMP Thu May 27 16:19:20 CEST 2010 i686 BOOST_LIB_VERSION=1_42 Thu Apr 12 19:27:39 waiting for connections on port 27017 Thu Apr 12 19:27:39 listen(): bind() failed errno:98 Address already in use for port: 27017 Thu Apr 12 19:27:39 MiniWebServer: bind() failed port:28017 errno:98 Address already in use Thu Apr 12 19:27:39 addr already in use Thu Apr 12 19:27:39 warning: web admin interface failed to initialize on port 28017 ``` Someone helps? Thanks!