Jeez guys, someone just asked for advice, and your rolling down your pants to see who's got the biggest one. Sigh..... It's already said: move you spekers away from the walls, block the ports with foam or roll up a sock and put it in (not to far, you have to be able to get it out).
It also might just be that your speakers just produce to much of the low stuff (small room, big speakers, etc). If that's the case, you might want to consider other, smaller speakers, or ones with more controlled low-end. Btw: this is all purely mu opinion, and all resemblance to actual things is pure coincidence. :)