--- SDL_QWin.cc.org	2003-10-26 22:42:20.000000000 +0900
+++ SDL_QWin.cc	2003-10-26 22:44:50.000000000 +0900
@@ -41,7 +41,8 @@
     isSLA300InputFix_(0)
 {
   for (int i = 0; i < 5; i++) curAxis_[i] = 0;
-  setBackgroundMode(NoBackground);
+  setBackgroundColor( QColor::QColor(0,0,0) );
+  setBackgroundMode( FixedColor );
 }
 
 SDL_QWin::~SDL_QWin() {