Blue screen immediately after initializing a questionnaire or experiment

I have trouble with actually visualizing the information in the questionnaires. Thus, MediaLab opens normally, I can select the condition and participant number, but when it comes to actually running a questionnaire, I simply get the blue screen without even the continue button.

I tried running both new made questionnaires and questionnaires that I had previously used and I get the same reaction.

I was wondering if it could be due to the small screen size of my computer- lenovo 4333-A43; with a screen of 10.1 inch and definetly not strong memory of 1GB?
I would greatly appreciate some idea of how to make it run.
Regards,
Anca