If your DAS Trader Pro has a resolution problem on your monitor, right-click DasTrader.exe -> Properties, and then refer to the screenshot below. Click on the “Compatibility” tab and then click on the “Change high DPI settings” button. It will bring up the dialog box shown on the right-hand side of the screenshot. After you check the “Override high DPI scaling behavior” box, do try all of the different options that appear in the drop-down list. One of those options may resolve your issue.