Contact address update affecting next contact on the list.

Contact address update affecting next contact on the list.

When I update a contact's address details, the next contact inherits the same address info eventhough it is for a different company ?????

I create a list of contacts by applying a filter ( > Feb 1, 2013). I then edit one of the contacts on the list. I then lookup the company so that the address details will be populated in my contact. After I save and go back to my list I notice that the next contact has also inherited the same address details eventhough its company name is different.

I have screen shots I am happy to forward under a private email to tech support.

Help, please.
Richard.