Blank screen during presentation of E-Prime experiment on projector

[Boris Volfson]

I was wondering if anyone has encountered the following problem.

I am currently piloting a very simple E-Prime experiment with an fMRI. The experiment seems to work perfectly on the laptop, however when I connect it to the projector that is used to display the E-Prime experiment I noticed a problem.

I am using a Pentium M, 1700 Mhz, with an ATI MOBILITY RADEON 9000.

The problem is that I get an unexpected blank screen during the experiment. The blank screen happend four times (out of four pilot experiments) at what appeared to be random times. It was on both the projected image and on the laptop. They also lasted for different times (anywhere from a few seconds to over a minute). This happend with both an experiment that only had text display and an experiment that had display of text and bmp pictures. As far as I know the projector works fine for other people.

Does anyone has any suggestions?