Disregard my previous post. You need to add a bgr column and a style column to your original input file. You may decide not to use the between group randomization or have more than one style for all your stimuli or trials, but your input file still needs these columns. They also need to be in a particular order in your input file. See the attached file for an example. Add those columns to your input file first and see what happens.
As far as using styles, I generally recommend avoiding using the number 0 as a style code in both the .csv input files and the styles.drt file. You can find out more about style codes in the .csv input file here-http://www.empirisoft.com/directrt/help/directrt_style.htm-and the defining styles.drt file options here: http://www.empirisoft.com/directrt/h...yle_editor.htm