Rails server failed after rebooting

Hi people,

I have a Mac and installed Ruby 1.9.3 with Rails on RVM.

It was all running before I restarted my machine. Now I am getting this message:

Fabios-MacBook-Pro:pandora lanza$ mysql.server start
Starting MySQL
SUCCESS!
Fabios-MacBook-Pro:pandora lanza$ rails server
dyld: lazy symbol binding failed: Symbol not found: _mysql_get_client_info
  Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
  Expected in: flat namespace

dyld: Symbol not found: _mysql_get_client_info
  Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
  Expected in: flat namespace

Trace/BPT trap: 5

Some one know how to solve it?

Thanks