I have only been in my current position for a few weeks. Before this, I worked for one company for over 8 years. My current position is not panning out how I had hoped. There really isn't much room for growth, and it isn't nearly challenging enough. I had the thought in my first week, "A trained monkey could do this." Is it okay for me to start looking for a different position already? Yes, I know I should/could give it longer. I just don't see myself being any happier 6 months down the road. Wouldn't it be better to leave earlier rather than later? 

If I do decide to find another job, do I still list this one on my resume? It isn't outside of my normal industry.