I use Windows Live Mail and have linked it to my Windows Phone 7. In my contacts list, I have lots of records which consist of a person's LinkedIn/Facebook/Twitter/what-have-you account plus the notes and things I've added on my phone. They are all neatly linked on my phone so that each person only appears once. 

WLM can't seem to figure this out. I have up to three or four records for some people, because I'm their contact on different websites. One contact will be them on LinkedIn, one will be just their name and phone number, ane will be them on Facebook... I can't merge or link these records so using my bloated address book is very annoying. Meanwhile, the contacts have stayed linked on my phone as well as my Live account. In fact, when I click 'clean up contacts' in WLM and get taken to my Live.com address book, there's nothing to clean up as it's all correct there.

How can I get WLM to link my contacts and get rid of duplicate entries?