Boredom

What is the point of taking a new software engineer position if you don't get to do anything fun?!? I recently took a new job, with a large aerospace/defense company in St Louis, (vague enough?) and unfortunately I have been stuck doing nothing for the last 3 weeks. Granted I have been told what the plan is to have me do, and it sounds great, but until I get started I will be stuck complaining and sitting here surfing the web!