BB Bold :: Stopping Import/synchronization Of Contacts?

I just got a new Bold 9900, and set it up with 3 email accounts (hotmail, gmail, and my school's email). When I set up the accounts, I chose to not import any contacts. I have since double checked this under email setup to make sure they are not being synchronized.However, when I compose a message on my phone, a list of "contacts" appears as I type - so if I start with an "M", a list of contacts that start with M appear underneath. My problem is that some of these are not contacts I have specifically added on the blackberry (i.e. they are from my other email accounts), and others are not even contacts, but merely people who have sent me an email once before (such as a company I once bought a product from).I know this isn't a huge problem, but it is really bothering me, and I think it's a bit strange to see a list of people who are not on any contact list I have. I had a Curve for 3 years until now, and never had this problem.