Sharmishtha Gupta wrote:

Hi All,

I am facing trouble with Sandium theme http://drupal.org/project/sandium

The theme is not rendering without a user login into Drupal website. After login it works perfectly fine. I am not able to track the reason. Please suggest the solution.

Sounds like you need to admin/settings/performance and click the "Clear cache" button at the bottom of the form.