diff --git a/PSKoans/Koans/Cmdlets 1/AboutPSProviders.Koans.ps1 b/PSKoans/Koans/Cmdlets 1/AboutPSProviders.Koans.ps1
index 916228da4..6aedc5a63 100644
--- a/PSKoans/Koans/Cmdlets 1/AboutPSProviders.Koans.ps1	
+++ b/PSKoans/Koans/Cmdlets 1/AboutPSProviders.Koans.ps1	
@@ -134,7 +134,7 @@ Describe 'Environment Provider' {
 
 Describe 'FileSystem Provider' {
     BeforeAll {
-        $Path = 'TestDrive:' | Join-Path -ChildPath 'File001.tmp'
+        $Path = 'TEMP:' | Join-Path -ChildPath 'File001.tmp'
 
         $FileContent = @'
 PSKOANS!
diff --git a/PSKoans/Koans/Foundations/AboutArrays.Koans.ps1 b/PSKoans/Koans/Foundations/AboutArrays.Koans.ps1
index 7a361bea0..385058e34 100644
--- a/PSKoans/Koans/Foundations/AboutArrays.Koans.ps1
+++ b/PSKoans/Koans/Foundations/AboutArrays.Koans.ps1
@@ -194,6 +194,7 @@ Describe 'Arrays' {
     }
 
     It 'can reverse an array' {
+        $Array = 1, 2, 3, 4, 5, 6, 7
         $LastIndex = __
         $Array[-1..$LastIndex] | Should -Be @(7, 6, 5, 4, 3, 2, 1)
     }
diff --git a/PSKoans/Koans/Foundations/AboutHashtables.Koans.ps1 b/PSKoans/Koans/Foundations/AboutHashtables.Koans.ps1
index a8ccd1ac4..69189ebd3 100644
--- a/PSKoans/Koans/Foundations/AboutHashtables.Koans.ps1
+++ b/PSKoans/Koans/Foundations/AboutHashtables.Koans.ps1
@@ -180,7 +180,7 @@ Describe 'Hashtables' {
             $Hashtable.ContainsValue('Fruit') | Should -BeTrue
 
             $Hashtable['Oranges'] | Should -Be 'Fruit'
-            $Hashtable['Carrots'] | Should -Not -Be $Hashtable['Oranges']
+            $Hashtable['Carrots'] | Should -Be $Hashtable['Oranges']
         }
 
         It 'will not implicitly convert keys and lookup values' {
diff --git a/PSKoans/Koans/Foundations/AboutLoopsAndPipelines.Koans.ps1 b/PSKoans/Koans/Foundations/AboutLoopsAndPipelines.Koans.ps1
index b8c5674b1..f57ba1a61 100644
--- a/PSKoans/Koans/Foundations/AboutLoopsAndPipelines.Koans.ps1
+++ b/PSKoans/Koans/Foundations/AboutLoopsAndPipelines.Koans.ps1
@@ -125,7 +125,7 @@ Describe 'Pipelines and Loops' {
                 #>
                 $i
             }
-            $Values | Should -Be @(0, 1, 2, 3, 4)
+            $Values | Should -Be __
         }
 
         It 'can loop while a condition is $true' {
diff --git a/PSKoans/Koans/Katas/ProcessingStrings.Koans.ps1 b/PSKoans/Koans/Katas/ProcessingStrings.Koans.ps1
index 02744b3ac..6a225d4cd 100644
--- a/PSKoans/Koans/Katas/ProcessingStrings.Koans.ps1
+++ b/PSKoans/Koans/Katas/ProcessingStrings.Koans.ps1
@@ -15,7 +15,15 @@ param()
     [double] $value           # Casts (converts) the value into numerical data
     $String -split ','        # Creates an array by splitting the string
 
-    Be sure to review AboutStrings and AboutArrays if you need to!
+    Be sure to review AboutStrings, AboutArrays and the other foundation Koans
+    you've done so far if you get stuck!
+
+    Testimonial:
+    "Can someone give me a hint on how to do this, I feel stupid."
+    -Puzzled PowerShell Newbie
+
+    "I might have to steal this for a 'testimonials' section; that's exactly what the katas are meant for :D."
+    -Joel
 #>
 Describe "The Stock Challenge" {
     BeforeAll {
diff --git a/PSKoans/Koans/Katas/SortingCharacters.Koans.ps1 b/PSKoans/Koans/Katas/SortingCharacters.Koans.ps1
index 7a9c2d953..7b6123f1c 100644
--- a/PSKoans/Koans/Katas/SortingCharacters.Koans.ps1
+++ b/PSKoans/Koans/Katas/SortingCharacters.Koans.ps1
@@ -67,11 +67,11 @@ Describe 'Kata - Sorting Characters' {
         }
         @{
             String = 'What do you call the world?'
-            Result = 'aacddehhlllooorttuwWy'
+            Result = 'aacddehhlllooorttuWwy'
         }
         @{
             String = 'Out of nowhere, the mind comes forth.'
-            Result = 'cdeeeeffhhhimmnnooOoorrstttuw'
+            Result = 'cdeeeeffhhhimmnnOoooorrstttuw'
         }
         @{
             String = 'Because it is so very clear, it takes longer to come to the realization.'
@@ -79,11 +79,11 @@ Describe 'Kata - Sorting Characters' {
         }
         @{
             String = 'The hands of the world are open.'
-            Result = 'aaddeeeefhhhlnnoooprrstTw'
+            Result = 'aaddeeeefhhhlnnoooprrsTtw'
         }
         @{
             String = 'You are those huge waves sweeping everything before them, swallowing all in their path.'
-            Result = 'aaaaabeeeeeeeeeeeefgggghhhhhhiiiiillllmnnnnoooopprrrrsssstttttuuvvwwwwyY'
+            Result = 'aaaaabeeeeeeeeeeeefgggghhhhhhiiiiillllmnnnnoooopprrrrsssstttttuuvvwwwwYy'
         }
     )
 }