title: Why can't libcudart.so.4 be found when compiling the CUDA samples under Ubuntu?
body: <p>I'm trying to get my Cuda SDK samples running, but I get the following error:</p>
  
  <pre><code>./bandwidthTest: error while loading shared libraries:
                   libcudart.so.4: cannot open shared object file:
                   No such file or directory
  </code></pre>
  
  <p>Why can I compile the example successfully, but not run it?  Is there a way to specify the path to the CUDA runtime library manually?</p>