diff --git a/logo/mboard/pt3_lib_mockingboard_setup.s b/logo/mboard/pt3_lib_mockingboard_setup.s
index 071e55cd..3178a6a8 100644
--- a/logo/mboard/pt3_lib_mockingboard_setup.s
+++ b/logo/mboard/pt3_lib_mockingboard_setup.s
@@ -241,10 +241,16 @@ done_apple_detect:
 ;	lda	#>interrupt_handler
 ;	sta	$03ff
 
+
+	; logo has us in AUX mode???
+
+	sta	$C008		; switch to main memory
+
 	jsr	$BF00		; prodos MLI interface
 	.byte	$40		; ALLOC_INTERRUPT
 	.word	interrupt_parms
 
+	sta	$C009		; return to main memory
 
 	;============================
 	; Enable 50Hz clock on 6522