trial interval time taking too long

We're having a problem where although we set the Trial Interval time to less than 1000 ms (350ms), it still appears to be taking about 1 second.

We're doing a priming study where we show images in succession, but the time between each image is too long, which is why we thought the Trial Interval time change should work.

Although our images load and are presented at the times we want them for the priming paradigm, it's the time in between image (trial) presentations that is too long for our purposes.

Please suggest how we can fix this.

Can you post a copy of your input and drt files?

Here's our input file. What do you mean by the DRT files? Do you mean the images that correspond to the input file? If thats the case, you could substitute any image to figure out why the trial interval is taking so long.