Hi All, I am writing to remind everyone that, following our recent operating system upgrade,* it is important to check that your stimuli scripts are running as intended before resuming scanning*. There are testing PCs available in YNiC for this purpose, and in many cases we can help to resolve issues you might have difficulties with. *Psychopy users* Our testing has highlighted that *some psychopy scripts will be susceptible to inaccurate timing* issues with the new psychopy version (2023.2.0). We now strongly recommend that when initialising your visual window you set waitBlanking=False, or that you ensure your script runs at 120 Hz, and the monitor is adjusted accordingly using the Applications>>Settings>>Display menu. In addition, the event.getkeys() function is deprecated, an example update to fix this can be found here: https://wiki.pages.ynic.york.ac.uk/IT/summer_2023_upgrade.html#psychopy Please remember that it is your responsibility to thoroughly test your stimuli scripts and ensure that everything is working as intended. Cheers, Rich -- Dr Richard Aveyard Senior Technical Specialist York NeuroImaging Centre University of York, UK