Tabs and calendar do not appear correctly

Hi
I have a displaying problem with gk box when I have tabs or calendar in my page . when I change the template every things work fine so I supposed that is template problem ...
how can I solve it ...

many thanks for your answer.

Could you please provide me with a URL to your website, either here or via PM (click the “Private Message” text underneath my avatar) so that I may analyze it? It is a lot easier for us to diagnose issues when we have a live site to examine.