This tutorial explains the process for changing the background colour of the editor when using your template. In cases where the background image or colour is the same as the colour of the font it is impossible to read the text you are writing in the content administrator.

This is an indepth tuorial to help resolve this situation: http://forum.joomla.org/index.php/topic,85816.0.html Most of the Joomlabamboo templates will come with an extra editor_content.css to help avoid this.