Team Viewer Screen very small

Hi,  I'm using Team Viewer to connect with a friends computer to help him with some computer issues.  He is using the quick support module and I'm using Team Viewer 14.  I can connect to him and then his computer screen comes up so I can see it.  The problem is that the screen is very small to read.  I have to use a magnifying glass to read icon names etc. on the screen.  I don't think it did this in previous versions.  Is there a setting I can set to enlarge the display?

Thanks GMD