Windows Live Mail not Completely Syncing with my Droid Razr

I recently switched to Windows Live Mail (from Outlook Express) for my AT&T e-mail account, which I access from my laptop as well as my Droid Razr phone.

I deleted my old e-mail account on my Razr and created it again and I do receive e-mails through Windows Live and my phone, however, they don't sync. Meaning, if I read an e-mail on my phone and delete it from my inbox, it still shows up in my Windows Live e-mail inbox and vice versa.

When I used Outlook Express, if I deleted the e-mail from my phone, it would be deleted from Outlook Express too and vice versa.

I'd like to get back to the 1 and done process so I'm not having to delete messages twice. Anyone have any experience with this?

Thanks