Just out of curiosity, would you be able to break up your large single input file into a group of smaller ones to run? It seems like you have some natural break points in the trials with ~instruction that occur between blocks of picture presentation. If you have MediaLab, you could use it to handle the presentation of all of the stimuli. I had this thought after rereading the statement from your first email about how splitting the file in half did not seem to invoke the "style not found" error.
Jason Reed
Empirisoft Software Support Specialist