2 domains pointing to the same dedicated IP (one is not mine!)

I would like to know where is the problem and how could be solved.
I have my domain hosted with energizedhosting.com, with a dedicated IP.
There is another domain hosted too with energizedhosting.com which points to my IP (checked on ping, in browser, even yahoo indexed the other domain, not mine).
I forgot to mention, my site is running on both domains!

I noticed the problem from my stats, from this domain coming most hits to my site.

I contacted the hosting company a week ago and here is the reply:
"The **********.com domain is probably hosted on the same server and there is a broken httpd configuration pointing *********.com. This should be taken care of soon, I'm making some changes."

No news yet. Please let me know where could be the problem?

 

 

 

 

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