There should be a small Allen key with the guitar. Use that to turn the posts on either side of the strings at the bridge, to raise or lower the saddles.
See the saddles on the rear? The one behind the bridge pickup? Your guitar should have come with a small allen wrench...just put that in the corresponding saddle where the strings are too high and turn counter-clockwise to loosen. Do it evenly so you can press the string down without a problem.
A minor adjustment. Not as bad as switching gauges or adjusting the truss rod. If you have some precision screwdrivers (about $3 at Sears) it's really no big deal.