Screen stretched with legacy backend
I have chosen to use the legacy backend, because I am using forms in my experiment and this is the only backend that allows them to work quickly enough. However, when I use legacy, the instructions, forms and sketchpad images all become very stretched on the screen. I'm guessing that this is because I am using a wide-screen monitor, but the other backends appear to display the experiment in a nice standard layout (not stretched) regardless of the monitor I'm using.
How can I adjust the experiment so that the screen size is a standard size on all monitors? I tried adjusting the resolution in the New Experiment tab with the legacy backend, but this cuts off the sides of the sketch pad items, and the experiment does not look as good as it does using the other backends.
This is a screenshot of what it looks like using xpyriment (how I want it to look - looks the same on different monitors).
This is a screenshot of what it looks like using legacy (it looks even more stretched on my widescreen monitor).
This is a screenshot of what it looks like using legacy but changing the resolution to try to make it fit (cuts of the canvas image and still doesn't look as good as with xpyriment).