This can also cause issues with Fast poker games and Ultra HD/Retina displays.
To fix this, set the DPI to smallest/normal/100%/96DPI. Depending on the operating system, this is labeled differently.
Windows 10:
- Right-click the desktop
- Click Display Settings
- Slide the "Change the size of text, apps, and other items: 100%" slider all the way to the left.
- Click Advanced display settings
- Adjust your resolution to the maximum allowed.
Finally, then click "Advanced sizing of text and other items"
Click "set a custom scaling level" and change this to 100%
You could also disable DPI scaling for high resolution. Right-click the holdemmanager.exe, HUDfuncapps.exe and pokerstars.exe files. Go to Compatibility > check "disable display scaling on high DPI settings"Windows 8
Windows 7
Windows Vista
Windows XP