Odd behaviour when setting bottom margin

Question

Possible Duplicate:
Tables below footnotes, is this a good output routine algorithm or a bug?

I use

\documentclass[liststotocnumbered,bibtotocnumbered,12pt,a4paper,Arial]{scrbook}
\usepackage[left=25mm, right=25mm, top=25mm, bottom=20mm]{geometry}

I have no idea why LaTeX places one of my figures beneath a footnote:

Removing the bottom-setting form geometry places the figure to the correct position. However, I need to set the bottom margin to 20mm and don't know which default-setting the scrbook-environment uses.

\usepackage[left=25mm, right=25mm, top=25mm]{geometry}

Answer 1

If a bottom float appears on a page, LaTeX places the footnote above it. To prevent this you can load the footmisc package with its bottom option:

\usepackage[bottom]{footmisc}