--- sd/source/ui/slideshow/slideshowimpl.cxx	2007-04-26 16:58:09.438549000 +0200
+++ sd/source/ui/slideshow/slideshowimpl.cxx	2007-05-22 22:24:29.543802000 +0200
@@ -1988,6 +1988,11 @@
 				 break;
 			 }

+#if defined(MACOSX) && defined(QUARTZ)
+             // busy loops currently render nothing on OSX - have to
+             // go through main loop each time
+             break;
+#else
              // if UI input pending: quit busy loop (and setup timer
              // below)
 			 if( Application::AnyInput(INPUT_MOUSE|INPUT_KEYBOARD|INPUT_PAINT) )
@@ -1998,6 +2003,7 @@
 			 // get CPU (e.g. X11).
 			 TimeValue aTimeout={0,1000};
 			 osl_waitThread(&aTimeout);
+#endif
 		}
 		if( mxShow.is() && ( fUpdate >= 0.0 ) )
 		{