Rear defrost issue

any help would be great.

The problem iam getting is that only 2 lines (those orange/yellow) that go across the window seem to be working. So i only have about 1 inch in the middle of my rear window that gets defrost.

http://www.google.com/search?sourceid=navclient&aq=t&ie=UTF-8&rls=SUNA,SUNA:2006-20,SUNA:en&q=repair+rear+window+defogger 94