Help!

Why do I continually get the following error?

------------------------------------------------------------
irb(main):001:0> require 'openssl'
LoadError: no such file to load -- openssl
        from (irb):1:in `require'
        from (irb):1
------------------------------------------------------------

I've tried everything in every post about this.  I've blown away my
ruby install like 6 times.  How do I get ruby to recognize openssl?

I've installed:

ubuntu
ruby 1.8.5
libopenssl-ruby
libzlib-ruby
libyaml-ruby
libdrb-ruby
liberb-ruby 
zlib1g-dev


Any suggestions?

Thank you,
Chad