SubLab uses openGL by default to draw the interface.
Older graphics cards (for example Nvidia geforce 9500 GT) and some on-board Intel graphics chips in Windows laptops (such as Mobile intel 4 Series Express) can have trouble using the newer openGL that SubLab uses.
If you are experiencing a blank interface like in the image below, here's what you can do.
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1. Update your graphics card drivers
You can do this by checking your graphics card and then visiting the manufacturers site and updating the drivers.
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2. Make sure you're using the latest version of SubLab
You can now disable openGL altogether - just make sure you have installed the latest version of SubLab.
You can find more info on downloading the update here.
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3. Disable openGL
Once you've downloaded and installed the latest version of SubLab, navigate to the folder ../FAW/SubLab and open the file settings.xml in a text editor.
You should see something similar to the image below:
Next, on the line "opengl_disabled" change val="0" to val="1" like below: