MSN Explorer...
It's got some nice features (The integration with Hotmail is really cool!!)
But I think for someone such as yourself, mouse, you'll need to use a browser that allows you the functionality you want (Such as IE) My question is, if you want the funcitonality of IE, why use MSN Explorer in the first place?
Like I said, MSN Explorer has some really nice features and it has a lot of potential to become a real player in the market - but it's still in it's 'baby' stages - give it some time, maybe they'll throw in some of the IE features
~Quack