Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIFrameBufferSDL.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIFrameBufferSDL.cpp	(revision 41290)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIFrameBufferSDL.cpp	(revision 41291)
@@ -88,5 +88,5 @@
             if (m_pSurfVRAM)
             {
-                SDL_Rect rect = { (Sint16)r.x(), (Sint16)r.y(), (Sint16)r.width(), (Sint16)r.height() };
+                SDL_Rect rect = { (Sint16)r.x(), (Sint16)r.y(), (Uint16)r.width(), (Uint16)r.height() };
                 SDL_BlitSurface(m_pSurfVRAM, &rect, m_pScreen, &rect);
                 /** @todo may be: if ((m_pScreen->flags & SDL_HWSURFACE) == 0) */