When playing an activity, a student could see that the activity doesn't fit into the frame. It may be too small for the frame or so large that you cannot read all of the activity. In some cases, the Forward or Next button is off the screen.
This issue is known to occur when the browser has been zoomed in on the web page. Some content does not zoom the same way as HTML content, such as a web page, does. To correct this issue you must set your browser's zoom level back to 100%. For more information on how to adjust your browser zoom level check with the browser's creator or your Information Technology personnel.