diff -p -up krandr-0.5.2.1/randr/randrcrtc.cpp.orig krandr-0.5.2.1/randr/randrcrtc.cpp
--- krandr-0.5.2.1/randr/randrcrtc.cpp.orig	2008-05-15 13:45:35.000000000 -0300
+++ krandr-0.5.2.1/randr/randrcrtc.cpp	2008-05-15 13:44:02.000000000 -0300
@@ -202,6 +202,7 @@ bool RandRCrtc::applyProposed()
 
 	// Grab server while messing around
 	XGrabServer(qt_xdisplay());
+	XFlush(qt_xdisplay());
 
 	RandRMode mode;
 	if (m_proposedRect.size() == m_currentRect.size() && m_proposedRate == m_currentRate)
@@ -248,6 +249,7 @@ bool RandRCrtc::applyProposed()
 	else if (!mode.isValid())
 	{
 		XUngrabServer(qt_xdisplay());
+		XFlush(qt_xdisplay());
 		return false;
 	}
 
@@ -268,6 +270,7 @@ bool RandRCrtc::applyProposed()
 			if (r.width() > m_screen->maxSize().width() || r.height() > m_screen->maxSize().height())
 			{
 				XUngrabServer(qt_xdisplay());
+				XFlush(qt_xdisplay());
 				return false;
 			}
 
@@ -279,6 +282,7 @@ bool RandRCrtc::applyProposed()
 				if (!adjustScreenSize(r, true))
 				{
 					XUngrabServer(qt_xdisplay());
+					XFlush(qt_xdisplay());
 					return false;
 				}
 			}
@@ -331,6 +335,7 @@ bool RandRCrtc::applyProposed()
 
 	m_screen->adjustSize();
 	XUngrabServer(qt_xdisplay());
+	XFlush(qt_xdisplay());
 	return ret;
 }