diff --git a/collects/deinprogramm/deinprogramm-langs.ss b/collects/deinprogramm/deinprogramm-langs.ss
index 8fe56a2e03..d3400fec3f 100644
--- a/collects/deinprogramm/deinprogramm-langs.ss
+++ b/collects/deinprogramm/deinprogramm-langs.ss
@@ -1367,9 +1367,9 @@
 				    "DeinProgramm" "Die Macht der Abstraktion - Anfänger"))
 	   (language-id "DMdA:beginner")
            (language-numbers '(-500 -300 3))
-           (sharing-printing #t)
+           (sharing-printing #f)
            (abbreviate-cons-as-list #t)
-           (allow-sharing? #t)
+           (allow-sharing? #f)
 	   (reader-module '(lib "DMdA-beginner-reader.ss" "deinprogramm"))
 	   (stepper:supported #t)))
 	
@@ -1382,9 +1382,9 @@
 				    "DeinProgramm" "Die Macht der Abstraktion"))
 	   (language-id "DMdA:vanilla")
            (language-numbers '(-500 -300 4))
-           (sharing-printing #t)
+           (sharing-printing #f)
            (abbreviate-cons-as-list #t)
-           (allow-sharing? #t)
+           (allow-sharing? #f)
 	   (reader-module '(lib "DMdA-vanilla-reader.ss" "deinprogramm"))
 	   (stepper:supported #t)))
 
@@ -1397,7 +1397,7 @@
 				    "DeinProgramm" "Die Macht der Abstraktion mit Zuweisungen"))
 	   (language-id "DMdA:assignments")
            (language-numbers '(-500 -300 5))
-           (sharing-printing #f)
+           (sharing-printing #t)
            (abbreviate-cons-as-list #t)
            (allow-sharing? #t)
 	   (reader-module '(lib "DMdA-assignments-reader.ss" "deinprogramm"))
@@ -1413,7 +1413,7 @@
 				    "DeinProgramm" "Die Macht der Abstraktion - fortgeschritten"))
 	   (language-id "DMdA:advanced")
            (language-numbers '(-500 -300 6))
-           (sharing-printing #f)
+           (sharing-printing #t)
            (abbreviate-cons-as-list #t)
            (allow-sharing? #t)
 	   (reader-module '(lib "DMdA-advanced-reader.ss" "deinprogramm"))