This update fixed the "no lights installed" error, but I still can't see shaders and get this in the console when I joined a server.
Checking for shader shadow support:
   - Enabled via $Shader::Enabled? YES
   - ARB_shader_objects?           YES
   - ARB_shading_language_100?     YES
   - EXT_texture_array?            NO
   - EXT_texture3D?                YES
   - EXT_framebuffer_object?       YES
   - ARB_shadow?                   YES
   - ARB_texture_rg?               NO
   - GLSL Language Version?        1.20
   o Shaders are                   INACTIVE
Skipping shader shadow initialization.