Dreamweaver

I’m having a huge problem with my content load area in Dreamweaver. I get it to look good with all my slices and then when I throw in a couple of paragraphs it looks fine but then when I put in a lot of text my cells split up and divide. I have my bottom cell widths at “100%” but those aren’t stretching in the right places.
I don’t know if I worded that correctly but I’m in need of some help! Ask for clarification and you shall receive.
–timbo