Desktop visible during a questionnaire

Hi,
I mailed you a while ago because I could see the taskbar during my medialab run, that problem was solved after you told me to look at properties and make sure "Always on Top" is de-selected as is Auto-Hide.
My experiment was running fine, only now I realized, that the first time I ran it on different computers, it showed the desktop in between screens (i.e., running a medialab questionnaire -> see desktop after each question). This only happened the first time I ran it and then stopped. Any idea what is going on?
Thanks for your response,
katherine

Hmm. Never heard of this before. This happens the first time on [I]any[/I] machine, or just this one? If the latter, have you seen it happen again?

It happened on a number of the lab computers (4 out of 5), and all only the first time..

Hmm. The first time ever and that's it, or the first time you run a session on any given day (e.g., after turning the computer on and off)?

I cannot be sure about the first time ever (certainly it was for me looking at the course, and I have checked it a lot, but you never know what participants see) and it was also the first time run after starting up the computers - although some had been on for about half an hour by the time I tested them, and it did not happen on one of them.

Does your experiment involve any other programs besides MediaLab?

it also involves word and direct RT. I did see the desktop within programs as well, not just between (i.e. within medialab questionnaire).

Can you zip your experiment folder and send it to me at support@... so I can try it here?