Small changes

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11563 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/splash.cpp

@@ -68,7 +68,11 @@ wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int mil
 
     Show(TRUE);
     m_window->SetFocus();
-    wxYield(); // Without this, you see a blank screen for an instant
+#ifdef __WXMSW__
+    Update(); // Without this, you see a blank screen for an instant
+#else
+    wxYieldIfNeeded(); // Should eliminate this
+#endif
 }
 
 wxSplashScreen::~wxSplashScreen()