I am running a medialab study using medialab 2010.3 and directrt 2010.3. The study loads the instruction screens fine but brings up the error "53 File Not Found" and then freezes when it tries to switch to the directRT portion of the study.

I can run regular medialab questionnaires fine and I can run the directRT portion successfully if I run it directly through DirectRT (and not through medialab).

The computers are running XP. We recently upgraded from 2008 versions of both programs in hopes to reduce the frequency of freezing during experiments that use medialab and directRT, but have now run into this problem.