Has your screen ever blacked out?

While running an experiment using DirectRT, the screen will randomly default to the black screen for DirecRT mid experiment therefor compromising a lot of data. Has anyone else had this issue and can offer feedback?

Also, data files are not always saving after experiment has finished running.

Can you please include contact information with your suggestions? Thank you for your help.

I was having this problem a while ago. I would go through most of the experiment and it would eventually just black out before the end of experiment screen. When I opened the data files, it only recorded the first 40 or so trials.\

I realized that I had too many columns on some of my trials. I had to break some of my trials down across several lines to stop the problem.