First off Kristenlindgren--five stars (or 200 points, you can pick) for your initiative in trouble shooting this--you've clearly got a grip on how we get started on issues like this!! Can I ask that you try one last thing before we go deeper--does this happen with the samples that come with MediaLab (e.g., like the simple self-esteem questionnaire)? Also, the "making changes" question I think is inconsequential--we've been seeing it with many programs now running on Windows 7.

Elair2007, if you take the simple sample that comes with ML and run it over and over again, can you get the same error?

In both cases, we're trying to see here if it is something about MediaLab on these systems, or an interaction of the systems and the experimental content.

Blair