diff -up dosbox-0.74/src/gui/sdl_mapper.cpp~ dosbox-0.74/src/gui/sdl_mapper.cpp
--- dosbox-0.74/src/gui/sdl_mapper.cpp~ 2010-05-10 20:58:06.000000000 +0200
+++ dosbox-0.74/src/gui/sdl_mapper.cpp 2013-05-10 20:53:02.133112189 +0200
@@ -2384,9 +2384,11 @@ void MAPPER_StartUp(Section * sec) {
mapper.sticks.num=0;
mapper.sticks.num_groups=0;
Bitu i;
- for (i=0; i<16; i++) {
+ for (i=0; i<MAX_VJOY_BUTTONS; i++) {
virtual_joysticks[0].button_pressed[i]=false;
virtual_joysticks[1].button_pressed[i]=false;
+ }
+ for (i=0; i<16; i++) {
virtual_joysticks[0].hat_pressed[i]=false;
virtual_joysticks[1].hat_pressed[i]=false;
}