my new job

I hate my new job. I am bored out of my mind. It's basically doing public relations for a nonprofit org. Now I remember why I dropped out of Public relations. I stare at a computer for hours and rack my brain to think of something to do that won't put me to sleep. I'd rather be unemployed in my field than do this, I'm rather be waiting tables. What's the polite way to say, "this isn't what I signed on for." I'm following on a few other job leads now.