Millisecond Forums

Hello, 

We would like to conduct an experiment that is also suitable for mobile devices. Our script works great on the computer, but the stimuli (pictures) are presented in a different position when using a phone or tablet. The position and size of the stimuli are actually fixed (the images should be shown in the middle of the screen). However, when using mobile devices, they are shifted to the top.
We have defined the properties like this:

<picture male_4_sad>
/ items = ("29FrameF (11).jpg")
/ position = (50%, 50%)
/ size = (70%, 70%)
/ erase = false
</picture>

Is any information missing or can we somehow control that the images are displayed at the right position even on mobile devices?
Thanks for the help!