Circle² uses OpenGL by default to draw the interface.
Older graphics cards (Nvidia GeForce 9500 GT for example) and some onboard Intel graphics chips in Windows laptops (such as Mobile Intel 4 Series Express) can have trouble using the newer OpenGL.
If you are experiencing a blank interface like in the image below, here's what you can do.
Update your graphics card drivers
Check what graphics card is in your computer. Then visit the manufacturers site and update the drivers.
Make sure you're using the latest version of SubLab
You can disable openGL altogether - just make sure you have installed the latest version of Circle². You can download the latest version of Circle² here.
1. Once you've downloaded and installed the latest version of Circle², navigate to the folder .../FAW/Circle-2
Unless you created a custom filepath, you can the files here:
PC: C:/Program Files/FAW/Circle-2
2. Open the file settings.xml in a text editor - you'll see something like this.
3. Copy the line below and paste it in between the two "<settings>" lines.
<VALUE name="opengl_disabled" val="1"/>
It should look like this:
4. Save the changes before closing the text editor. Restart your computer.
Now, you should be able to see the interface.