You can put it aside for a little bit.  Look at the calender.  Choose a date for when you want to pick it up again, such as, well, today's the 10th, so try the first of March. :):) Start a new story while you're taking a break!  I always have a few smaller stories going on, along with my novel! :D

What part is getting boring? The characters? The plot? Or just the actual sitting down at the computer and writing? If I were you, I would try to identify what makes it boring and then find a way to jazz it up. Add a new character. Thow an unexpected curve into the story line. Find a new time to type, or write it from a different point of view. And sometimes it does help to put it aside for a week or so, then go back and read the whole thing with fresh eyes. It's good for editing purposes, and you might find that you actually miss the writing and look forward to getting back to it. You don't have to pay heed to this stuff, I'm just putting out ideas. Good luck!

Thanks, everyone! :)

i have that problem all the time. The following is what works for me . . .

Don't think that you're writing a novel. Think short story. This may be hard to wrap around your head if you're planning big (like me),  but then you don't feel pressured to fill up unnessasary space with unnecessary stuff. Who knows? U may end up with much more (and better), and easier to read book then u expected. 

Try it. Works every time. Don't think, "Gosh, 200 pages left!"