MSN XSS exploit may not be the only way.

[N3M3S1S]

I read the article on XSS that was posted here.
Is there any other way for MSN to keep getting hacked. I have an idea who is doing it I just don't know how they are doing it.
I use Kaspersky 7.0 antivirus it has found nothing.
Hijackit has found nothing, so it cant be a trojan and my antivirus is uptodate
If they do have a fake cookie and are using it to get on my hotmail. Once they have the fake cookie how do i stop it? I cleared my IE, Mozilla, and Opera browser cache of all cookies and temp files and somehow this person is STILL stealing my msn account. At first it was no big deal because i could just go to live.com and fill out a questionaire about my IP and get it back but now its annoying as hell day in and day out, and i think they have started messing with my contact list. I have since saved my contacts and opened a new msn, but i would like to know how to stop them if there is anyway. Everytime they steal it they change my account password, question and secondary email. They keep registering it to one of 5 accounts. dj-zark@hotmail.com, dj_zark_@hotmail.com, indiex5494@hotmail.com, beezy87@hotmail.com or beezwax87@hotmail.com. I made sure none of these people are on my contact list. and yet somehow they still keep getting into my account. Someone please help. If need be please send me a message in private how to stop them.

Thank you in advance for your time,
Nemesis

[coz]

My first guest would be a keylogger. Second, maybe someone sniffing your wireless traffic? Something like this can't really be done with a cookie. Especially remotely. If you keep changing your password and this is still happening I would go for the keylogger idea. If I was you I would start encrypting my traffic and start looking for keyloggers and rootkits.