Thx Filip, for pointing this out. Added the missing break, if wState did not get set to CBF_EDIT.

Modified: trunk/reactos/lib/user32/controls/combo.c

--- trunk/reactos/lib/user32/controls/combo.c	2006-01-07 18:19:10 UTC (rev 20663)
+++ trunk/reactos/lib/user32/controls/combo.c	2006-01-07 18:53:26 UTC (rev 20664)
@@ -2314,9 +2314,10 @@

 		return  (lphc->wState & CBF_EUI) ? TRUE : FALSE;
 	case CB_GETCOMBOBOXINFO:
 		return COMBO_GetComboBoxInfo(lphc, (COMBOBOXINFO *)lParam);

-    case CB_LIMITTEXT:
-        if( lphc->wState & CBF_EDIT )
-            return SendMessageW(lphc->hWndEdit, EM_LIMITTEXT, wParam, lParam);

+        case CB_LIMITTEXT:
+                if( lphc->wState & CBF_EDIT )
+                   return SendMessageW(lphc->hWndEdit, EM_LIMITTEXT, wParam, lParam);
+                break;

 	default:
 		if (message >= WM_USER)
 		    WARN("unknown msg WM_USER+%04x wp=%04x lp=%08lx\n",