I don't think Musharraf wants a war either. But there are lot of fanatics in Pakistan that do, and on the Indian side there is a combination of those that want a war and those that are tired of fanatics from Pakistan coming over the border.
And then there is the problem of having large forces that are set for war facing each other over the border. One accident, real or staged, and things spiral out of control.
The fact that neither country has a large stockpile of nukes and there are questions about how reliable those nukes are actually makes the situation worse. It makes it to easy to take a gambler's view about the whole thing.
The one thing that does work in the favor of peace is that everybody outside India and Pakistan is applying pressure to back down. The risk of a nuclear exchange is to great to take any chance of a little conflict blowing out of proportion.
Jay