diff --git a/emulator/vpx-device/vpxlog.cpp b/emulator/vpx-device/vpxlog.cpp
index 1bab383..1a68de8 100644
--- a/emulator/vpx-device/vpxlog.cpp
+++ b/emulator/vpx-device/vpxlog.cpp
@@ -669,20 +669,30 @@ static void pal_draw(HDC dc, int g, int cw, int ch) {
     Bitu start = vga.config.real_start;      /* visible page start (bytes) */
     Bitu stride = (Bitu)W * 2;               /* 16bpp */
     if (fb) {
+        /* The six displays are bit-packed into each 16bpp pixel:
+         *   window 0 = the COLOR radar = bits 0-5 as 6-bit RGB (2 bits/chan)
+         *   window g>=1 = a mono display = the 2-bit field at bit (4 + 2*g)
+         *                 (g=1 -> bits 6-7, ... g=5 -> bits 14-15)
+         * rendered as brightness. */
+        unsigned shift = 4u + 2u * (unsigned)g;   /* used for g>=1 */
         for (int y = 0; y < H; y++) {
             Bitu ofs = start + (Bitu)y * stride;
             unsigned char *d = &img[(size_t)y * W * 3];
             for (int x = 0; x < W; x++, ofs += 2, d += 3) {
                 uint16_t px = *(const uint16_t *)(fb + (ofs & mask));
-                d[0] = (unsigned char)(((px >> 11) & 0x1F) * 255 / 31);
-                d[1] = (unsigned char)(((px >> 5)  & 0x3F) * 255 / 63);
-                d[2] = (unsigned char)(( px        & 0x1F) * 255 / 31);
+                if (g == 0) {
+                    d[0] = (unsigned char)(( px        & 0x3u) * 85u);  /* R: bits 0-1 */
+                    d[1] = (unsigned char)(((px >> 2u) & 0x3u) * 85u);  /* G: bits 2-3 */
+                    d[2] = (unsigned char)(((px >> 4u) & 0x3u) * 85u);  /* B: bits 4-5 */
+                } else {
+                    unsigned char v = (unsigned char)(((px >> shift) & 0x3u) * 85u);
+                    d[0] = d[1] = d[2] = v;
+                }
             }
         }
     } else {
         memset(img, 0, sizeof img);
     }
-    (void)g;
     glViewport(0, 0, cw, ch);
     glClearColor(0, 0, 0, 1); glClear(GL_COLOR_BUFFER_BIT);
     glDisable(GL_DEPTH_TEST); glDisable(GL_TEXTURE_2D); glDisable(GL_LIGHTING);
@@ -732,15 +742,20 @@ static DWORD WINAPI rt_main(LPVOID) {
     if (!make_gl_window("VPX VelociRender (emulated)", 832, 512, 40, 40,
                         &wnd, &dc, &gl)) return 1;
 
-    /* three 640x480 windows, one per VDB display palette */
-    static const char *pal_titles[3] = {
-        "VDB palette 0 - secondary", "VDB palette 1 - aux1",
-        "VDB palette 2 - aux2" };
-    HWND pwnd[3]; HDC pdc[3]; HGLRC pgl[3];
-    bool phave[3] = { false, false, false };
-    for (int g = 0; g < 3; g++)
+    /* one 640x480 window per decoded display: window 0 = color radar
+     * (bits 0-5 RGB), windows 1-6 = the mono displays (2-bit fields). */
+    const int NPAL = 7;
+    static const char *pal_titles[7] = {
+        "display 0 - radar (bits 0-5 RGB)", "display 1 (bits 6-7)",
+        "display 2 (bits 8-9)", "display 3 (bits 10-11)",
+        "display 4 (bits 12-13)", "display 5 (bits 14-15)",
+        "display 6 (bits 16-17)" };
+    HWND pwnd[7]; HDC pdc[7]; HGLRC pgl[7];
+    bool phave[7] = { false, false, false, false, false, false, false };
+    for (int g = 0; g < NPAL; g++)
         phave[g] = make_gl_window(pal_titles[g], 640, 480,
-                                  920, 40 + g * 500, &pwnd[g], &pdc[g], &pgl[g]);
+                                  880 + (g % 3) * 650, 30 + (g / 3) * 470,
+                                  &pwnd[g], &pdc[g], &pgl[g]);
 
     VFrame cur;
     for (;;) {
@@ -765,8 +780,8 @@ static DWORD WINAPI rt_main(LPVOID) {
                 rt_frames++;
             }
         }
-        /* redraw the palette windows every tick (live) */
-        for (int g = 0; g < 3; g++) {
+        /* redraw the display windows every tick (live) */
+        for (int g = 0; g < NPAL; g++) {
             if (!phave[g]) continue;
             wglMakeCurrent(pdc[g], pgl[g]);
             RECT cr; GetClientRect(pwnd[g], &cr);