Millisecond Forums

Unfortunately, including: / canvasposition = (50%, 50%) did not change the mouse coordinates. We have successfully run the version on two different laptops though and the coordinates seem right in those outputs. As we want to use the script for an online study it would be important that it ran on all computers. If you have any idea what we need to do to fix the problem, that occurs on some computers, it would be great. Thanks!

Unfortunately I don't have any idea what's causing this at present. I am unable to reproduce this on any of the machines I have at my disposal, i.e., the coordinates take on the values they are supposed to take on. My overall impression is that only very few systems would exhibit this issue (for as yet unknown reasons), so in an online setting I would (1) log coordinates and (2) weed out those few machines where they are off (e.g. negative coordinates).

If you come across any additional information / possibly pertinent details regarding the machines you're seeing this on, please add them to this thread. The more information, the likelier it is we can eventually zero in on the root cause. Thanks!

Thanks, Dave. We will add information, if we know why the coordinates are incorrect on some computers.