Some of the Vostro 15.6 inch laptops have "15.6-inch FHD (1920 x 1080)" while others have "15.6-inch HD (1366 x 768)". I suspect the lower resolution version would not have the above issue with Amazing Charts.
I will write AC support about this issue. If there is no software-fix I suspect getting the lower resolution laptop is a good workaround.
