Randomly skipping trials??

[akb]

I've got an input file I've created where trials in Block 3 (basically the entire experiment) are being skipped over completely. Within Block 3 I've got the trials randomized--the other blocks where I'm not randomizing are running fine. I've run 9 subjects and do not have the same number of trials for any of them when I go back and look at the output files. The missing trials seem to be random--its not the same trial # missing every time, and it's happening across multiple (4) computers. I'm using an older version of DirectRT (Version 2004.1.0.42), so I'm not sure if that's influencing anything.

I've attached a subset of the input file--any ideas on why this might be happening??? Thanks for your help!!

[jarvis24]

This subset of trials looks fine. Do you get the problem if you run just this subset? If so, could I see the data log file that is produced?