diff --git a/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine-debugger.xml b/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine-debugger.xml
index fda688a61..ec0effa4b 100644
--- a/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine-debugger.xml
+++ b/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine-debugger.xml
@@ -12,7 +12,7 @@
 		<control type="button" binding="esc">ESC</control>
 		<control type="button" binding="ctrl-c">CTRL-C</control>
 	</keyboard>
-	<cpu id="cpu8088" model="8088" autostart="true" pos="left" padLeft="8px">
+	<cpu id="cpu8088" model="8088" autostart="false" pos="left" padLeft="8px">
 		<control type="button" binding="run">Run</control>
 		<control type="button" binding="setSpeed">Fast</control>
 		<control type="description" binding="speed" padLeft="8px">Stopped</control>
diff --git a/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine.xml b/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine.xml
index af747efdc..16841919f 100644
--- a/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine.xml
+++ b/pubs/pc/programming/Graphics_for_the_IBM_PC/demos/machine.xml
@@ -12,7 +12,7 @@
 		<control type="button" binding="esc">ESC</control>
 		<control type="button" binding="ctrl-c">CTRL-C</control>
 	</keyboard>
-	<cpu id="cpu8088" model="8088" autostart="false" pos="left" padLeft="8px">
+	<cpu id="cpu8088" model="8088" autostart="true" pos="left" padLeft="8px">
 		<control type="button" binding="run">Run</control>
 		<control type="button" binding="setSpeed">Fast</control>
 		<control type="description" binding="speed" padLeft="8px">Stopped</control>