How to Remove Black Boxes

Where can I remove these black boxes? see screenshot..
http://dizzinz.com/junk/blackbox.jpg

I know how to change the background color to blend them in...I made them black to show you what I'm talking about. I tried adding a height in there but no effect.

#navColumnOne {
background-color: #000000;
}

If I can't get rid of them, then is there a place to lower the height of them?

Thanks!

The program is not adding a bunch of boxes there, those are actually empty spaces between the boxes ... look for the margins on your sideboxes to close the gaps.

Ahh...I see that. I just looked at a long page, my conditions page and I see where it is going the full length of the page to accomodate the left column. So I see that it's spacing not boxes..Thanks for the info..I did what you said and reduced the margin to 0 and that closed up the space where it's not needed....looks much better, thank you so much!