Can you elaborate on the issue you are having? Is it with the question text, row text, column text? They style you choose for your survey sets defaults for all of those things. You can over ride size, color and other attributes by clicking on the paint brush icon to the right of the Header 1, Header 2 or Footer areas on the Question Text tab. You can do the same on the Rows or Columns tabs if that is the text you wish to adjust.