diff --git a/collects/tests/stepper/manual-tests.txt b/collects/tests/stepper/manual-tests.txt
index ad86949225..48a755f1ef 100644
--- a/collects/tests/stepper/manual-tests.txt
+++ b/collects/tests/stepper/manual-tests.txt
@@ -1,12 +1,20 @@
-open stepper, make sure it works for (+ 3 4).  Make sure it only works
-for the language levels it's supposed to.  Make sure that you get a
-warning when you change the underlying program, and a warning when the
-program window disappears. Try stepping backward and forward through
-programs with correct and erroneous (syntax errors, runtime errors)
-executions.  Make sure that the buttons are enabled and disabled as
-necessary.  Try programs which print snips (print-convert-test.ss)
+open stepper, make sure it works for (+ 3 4).
 
 make sure that stepper button appears and disappears as necessary when
 language level changes.
 
-try programs that contain test cases. D'Oh!
+Make sure that you get a warning when you change the underlying program, and a
+warning when the program window disappears.
+** closing a tab does not trigger the error message that it should...**
+
+Try stepping backward and forward through programs with correct and erroneous
+(syntax errors, runtime errors) executions.
+** clicking "end" on a run that ends in an error does not behave correctly ***
+
+Make sure that the step buttons are enabled and disabled as necessary.
+... I wish I had a model-checker here.
+
+Try programs which print snips (print-convert-test.ss)
+
+
+try programs that contain test cases; make sure that the popups behave sensibly.
diff --git a/collects/tests/stepper/through-tests.ss b/collects/tests/stepper/through-tests.ss
index e2a909401d..9a2165ee0e 100755
--- a/collects/tests/stepper/through-tests.ss
+++ b/collects/tests/stepper/through-tests.ss
@@ -101,7 +101,7 @@
       (for-each (lambda (fn) (apply fn args)) level-fns)))
 
   (define test-mz-sequence
-    (lang-level-test-sequence 'mzscheme fake-mz-render-settings #t #f))
+    (lang-level-test-sequence 'scheme/base fake-mz-render-settings #t #f))
   (define test-beginner-sequence
     (lang-level-test-sequence `(lib "htdp-beginner.ss" "lang")
                               fake-beginner-render-settings #f #t))
@@ -1709,6 +1709,3 @@
                    #;[show-all-steps #t])
       #;(run-tests '(check-expect check-within check-within-bad check-error) #;'(#;check-expect #;check-expect-2 check-within check-within-bad check-error))
       (run-all-tests)))
-  
-
-