Does this sound like a normal problem? i have a 99 Disco II w/99,000 miles. Recently, it has been starting up rather roughly. Seems to puff exhaust rather that a constant flow. Slight hesitation pulling away. It started out of the blue after it sat for a day or two and it was rainy. Now it happens after it has sat for a while regardless of the weather. Any ideas. the problem goes away after 5 minutes of driving.

 

So how long has it been since it was tuned? Have you replaced your plug wires, if not they are fried by now? Do you have a check engine light?
What about smoke, if you have any, what color, white, blue or black?
Mike