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.

.          .          .

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.

.          .          .

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.

.          .          .

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:

Lastly, save the file and then launch SubLab - you should now be able to see the interface as normal, no more blank interface!

.          .          .