diff -r 930614179450 src/events/SDL_events.c
--- a/src/events/SDL_events.c	Fri Dec 03 16:55:25 2010 -0800
+++ b/src/events/SDL_events.c	Wed Jan 12 22:22:40 2011 +0100
@@ -264,8 +264,9 @@
 /* Add an event to the event queue -- called with the queue locked */
 static int SDL_AddEvent(SDL_Event *event)
 {
-	int tail, added;
+	int tail, added, prev_tail;
 
+	prev_tail = (SDL_EventQ.tail+MAXEVENTS-1)%MAXEVENTS;
 	tail = (SDL_EventQ.tail+1)%MAXEVENTS;
 	if ( tail == SDL_EventQ.head ) {
 		/* Overflow, drop event */
@@ -279,6 +280,17 @@
 		        SDL_EventQ.event[SDL_EventQ.tail].syswm.msg =
 						&SDL_EventQ.wmmsg[next];
 			SDL_EventQ.wmmsg_next = (next+1)%MAXEVENTS;
+		} else if ((event->type == SDL_MOUSEMOTION) 
+		    && (SDL_EventQ.head != SDL_EventQ.tail)
+		    && (SDL_EventQ.event[prev_tail].type == SDL_MOUSEMOTION)
+		    && (SDL_EventQ.event[prev_tail].motion.state == event->motion.state)) {
+			SDL_EventQ.event[prev_tail].motion.x = event->motion.x;
+			SDL_EventQ.event[prev_tail].motion.y = event->motion.y;
+			SDL_EventQ.event[prev_tail].motion.xrel += event->motion.xrel;
+			SDL_EventQ.event[prev_tail].motion.yrel += event->motion.yrel;
+
+			/* Keep current tail */
+			tail = SDL_EventQ.tail;
 		}
 		SDL_EventQ.tail = tail;
 		added = 1;