If the game client flashes and glitches when it opens, or you receive the following error when starting the game, it is because you have setup DPI scaling / enlarged the size of your apps on the Windows desktop, but the setting you have used it too high and the game cannot start because it doesn't have enough screen space to display its window. Follow the instructions below to fix.

Screen Resolution Error
Effective screen resolution must be at least 1024x768. It is recommended that you either increase your screen resolution setting or reduce your DPI scaling setting.


You have setup DPI scaling for your Windows desktop but it is set too high for the game to run.

Windows XP
1. Right-click the Windows desktop, and then click Properties.
2. Click the Settings tab and then click Advanced.
3. On the General tab, in the DPI setting drop down list, choose Normal size (96 DPI), and then click OK.
4. To see the changes, close all of your programs, and then restart Windows.

Windows Vista
1. On the Start menu, click Control Panel, click Appearance and Personalization, and then click Personalization.
2. In the left pane, click Adjust font size (DPI). If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
3. In the DPI Scaling dialog box, select Default scale (96DPI).
4. To see the changes, close all of your programs, and then restart Windows.

Windows 7/8
1. Open Control Panel, click Appearance and Personalization, and then click Display.
2. On the Display screen, select Smaller - 100% (default) and click Apply.
3. To see the changes, close all of your programs, and log off.

Windows 10
1. On the Start menu, click Control Panel, click Appearance and Personalization, and then click Display.
2. Adjust the slider under Change the size of text, apps, and other items. Set it to 100% (Recommended).
3. Close the Control Panel.

Want to keep your large DPI scaling?
If you want to keep your DPI scaling setting but still want to play the game, go into the NoScrubs Iris Online folder and right-click the irisclient.exe and run the compatibility wizard. Select "The program opens but doesn't display correctly" and then "Program does not display properly when large scale font settings are selected" and then "Test the program...". If it works you can save this setting and the game will use this setting automatically the next time you start it.