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.