When you go to post anything the message box is white, and so is the font so you cannot see when you are typing. Anyone know how to fix this? THANKS.

Screenshot of the problem please? Also let us know your forum version.

Well there is a few ways to change this.
the simple way would be to change either the text color or background color.

Admin panel>diplay>colors.

but now like sanket is asking depending what versions or skin you mat be useing it might be better to use css.

Code:

 
input,textarea, select {
  color : #000000;
  font: normal 15px Verdana,Arial,Helvetica,sans-serif;
  border-color : #FFFFFF;
  background-image: url();
}