diff --git a/README.md b/README.md
index 231100ae3..41db8d121 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,8 @@ Latest [automatic builds](https://github.com/fgsfdsfgs/perfect_dark/actions) of
 * [i686-windows (`port-net`)](https://nightly.link/fgsfdsfgs/perfect_dark/workflows/c-cpp/port-net/pd-i686-windows.zip)
 * [i686-linux (`port-net`)](https://nightly.link/fgsfdsfgs/perfect_dark/workflows/c-cpp/port-net/pd-i686-linux.zip)
 
+If you are looking for netplay builds (the `port-net` branch), see [this link](https://github.com/fgsfdsfgs/perfect_dark/blob/port-net/README.md#download).
+
 ## Running
 
 You must already have a Perfect Dark ROM to run the game, as specified above.  
diff --git a/port/fast3d/gfx_opengl.cpp b/port/fast3d/gfx_opengl.cpp
index 44c420e10..86efd96bc 100644
--- a/port/fast3d/gfx_opengl.cpp
+++ b/port/fast3d/gfx_opengl.cpp
@@ -397,19 +397,14 @@ static struct ShaderProgram* gfx_opengl_create_and_load_new_shader(uint64_t shad
     if (cc_features.opt_blur) {
         // blur filter, used for menu backgrounds
         // used to be two for loops from 0 to 4, but apparently intel drivers crashed trying to unroll it
+        // used to have a const weight array, but apparently drivers for the GT620 don't like const array initializers
         append_line(fs_buf, &fs_len, R"(
-            const lowp float blurWeights[16] = float[16](
-                0.009947, 0.009641, 0.008778, 0.007509,
-                0.009641, 0.009345, 0.008508, 0.007278,
-                0.008778, 0.008508, 0.007747, 0.006626,
-                0.007509, 0.007278, 0.006626, 0.005668
-            );
             lowp vec4 hookTexture2D(in sampler2D t, in vec2 uv, in vec2 tsize) {
                 lowp vec4 cw = vec4(0.0);
                 for (int i = 0; i < 16; ++i) {
                     vec2 xy = vec2(float(i & 3), float(i >> 2));
-                    vec2 ofs = (vec2(-1.5) + xy) / tsize;
-                    cw += vec4(texture2D(t, uv + ofs).rgb * blurWeights[i], blurWeights[i]);
+                    lowp float w = 0.009947 - length(xy) * 0.001;
+                    cw += vec4(texture2D(t, uv + (vec2(-1.5) + xy) / tsize).rgb * w, w);
                 }
                 return vec4(cw.rgb / cw.a, 1.0);
             })"
@@ -586,6 +581,7 @@ static struct ShaderProgram* gfx_opengl_create_and_load_new_shader(uint64_t shad
         glGetShaderiv(vertex_shader, GL_INFO_LOG_LENGTH, &max_length);
         char error_log[1024];
         glGetShaderInfoLog(vertex_shader, max_length, &max_length, &error_log[0]);
+        sysLogPrintf(LOG_ERROR, "Failed to compile this vertex shader (ID %llx, %x):\n%s", shader_id0, shader_id1, vs_buf);
         sysFatalError("Vertex shader compilation failed:\n%s", error_log);
     }
 
@@ -598,6 +594,7 @@ static struct ShaderProgram* gfx_opengl_create_and_load_new_shader(uint64_t shad
         glGetShaderiv(fragment_shader, GL_INFO_LOG_LENGTH, &max_length);
         char error_log[1024];
         glGetShaderInfoLog(fragment_shader, max_length, &max_length, &error_log[0]);
+        sysLogPrintf(LOG_ERROR, "Failed to compile this fragment shader (ID %llx, %x):\n%s", shader_id0, shader_id1, fs_buf);
         sysFatalError("Fragment shader compilation failed:\n%s", error_log);
     }