diff --git a/reactos/include/reactos/win32k/ntuser.h b/reactos/include/reactos/win32k/ntuser.h
index ab5d448239f..ea790bdda78 100644
--- a/reactos/include/reactos/win32k/ntuser.h
+++ b/reactos/include/reactos/win32k/ntuser.h
@@ -815,6 +815,13 @@ typedef struct tagDPISERVERINFO
     UINT wMaxBtnSize;                    /* 014 */
 } DPISERVERINFO, *PDPISERVERINFO;
 
+// PUSIFlags:
+#define PUSIF_PALETTEDISPLAY         0x01
+#define PUSIF_SNAPTO                 0x02
+#define PUSIF_COMBOBOXANIMATION      0x04
+#define PUSIF_LISTBOXSMOOTHSCROLLING 0x08
+#define PUSIF_KEYBOARDCUES           0x20
+
 typedef struct _PERUSERSERVERINFO
 {
     INT           aiSysMet[SM_CMETRICS];
diff --git a/reactos/subsystems/win32/win32k/ntuser/focus.c b/reactos/subsystems/win32/win32k/ntuser/focus.c
index 1ae24a8fd66..d4e26400c62 100644
--- a/reactos/subsystems/win32/win32k/ntuser/focus.c
+++ b/reactos/subsystems/win32/win32k/ntuser/focus.c
@@ -63,7 +63,8 @@ co_IntSendActivateMessages(HWND hWndPrev, HWND hWnd, BOOL MouseActivate)
       if (WindowPrev) UserRefObjectCo(WindowPrev, &RefPrev);
 
       /* Send palette messages */
-      if (co_IntPostOrSendMessage(hWnd, WM_QUERYNEWPALETTE, 0, 0))
+      if (gpsi->PUSIFlags & PUSIF_PALETTEDISPLAY &&
+          co_IntPostOrSendMessage(hWnd, WM_QUERYNEWPALETTE, 0, 0))
       {
          UserSendNotifyMessage( HWND_BROADCAST,
                                 WM_PALETTEISCHANGING,
diff --git a/reactos/subsystems/win32/win32k/ntuser/winsta.c b/reactos/subsystems/win32/win32k/ntuser/winsta.c
index d6029f7e1ad..22dbff14b14 100644
--- a/reactos/subsystems/win32/win32k/ntuser/winsta.c
+++ b/reactos/subsystems/win32/win32k/ntuser/winsta.c
@@ -306,6 +306,12 @@ co_IntInitializeDesktopGraphics(VOID)
    gpsi->BitsPixel     = NtGdiGetDeviceCaps(ScreenDeviceContext, BITSPIXEL);
    gpsi->BitCount      = gpsi->Planes * gpsi->BitsPixel;
    gpsi->dmLogPixels   = NtGdiGetDeviceCaps(ScreenDeviceContext, LOGPIXELSY);
+   if (NtGdiGetDeviceCaps(ScreenDeviceContext, RASTERCAPS) & RC_PALETTE)
+   {
+      gpsi->PUSIFlags |= PUSIF_PALETTEDISPLAY;
+   }
+   else
+      gpsi->PUSIFlags &= ~PUSIF_PALETTEDISPLAY;
    // Font is realized and this dc was previously set to internal DC_ATTR.
    gpsi->cxSysFontChar = IntGetCharDimensions(hSystemBM, &tmw, (DWORD*)&gpsi->cySysFontChar);
    gpsi->tmSysFont     = tmw;