MSN Messenger 7.0 not running though chosen internet engine

[Barrie]

I have recently downloaded Norton Internet Security - had to disable whole
host of things to allow machine to do this.Since then MSN 7.0 (updated
version today to try to rectufy) opens my hotmail inbox through freeserve
when clicking on the icon - yet I am on AOL.

Any idea how I revert back toopening through AOL directly?

Thanks

Barrie