Sorry I ask this again, I keep doubting.. so now I am using Hotmail with Outlook Express. I'm scared if someone looks at my important mail and became paranoid, well there isn't any strange sent mail or evidence or such but I want to be 100% sure. 

example:
Someone accesses my mailbox (from site www.hotmail.com) from a different computer and looks at the posts but marks unread, does these actions and the IP of the visitor get logged in the Outlook express log files so I can check them??

I've heard Outlook Express displays IP's or something. What is it, I dont remember what the thing was?

I change password regularly but I would like to know if someone has accesed my account in the past and from which IP..

So basically is there a Outlook Express log file which shows login IP's and dates etc on my hotmail account? Can it be found out..?

AFAIK, there's no way to trace previous logins. Anyway, if you're changing your password regularly, you'll be fine.