diff --git a/Content/Presentations/modularized/figures/Exercise04-Performance.pdf b/Content/Presentations/modularized/figures/Exercise04-Performance.pdf
deleted file mode 100644
index 3328c463..00000000
Binary files a/Content/Presentations/modularized/figures/Exercise04-Performance.pdf and /dev/null differ
diff --git a/Content/Presentations/modularized/figures/Exercise04-Performance.png b/Content/Presentations/modularized/figures/Exercise04-Performance.png
new file mode 100644
index 00000000..887dabb5
Binary files /dev/null and b/Content/Presentations/modularized/figures/Exercise04-Performance.png differ
diff --git a/Content/Presentations/sections/Section_Hierarchical.tex b/Content/Presentations/sections/Section_Hierarchical.tex
index 76ba83e5..f624ffa8 100644
--- a/Content/Presentations/sections/Section_Hierarchical.tex
+++ b/Content/Presentations/sections/Section_Hierarchical.tex
@@ -561,29 +561,24 @@
 
 \begin{frame}[fragile]{Reminder, Exercise \#4 with Flat Parallelism}
 
-  \vspace{-10pt}
-
-    \includegraphics[viewport=1.25in 3.0in 10in 6in, width=0.95\textwidth]{figures/Exercise04-Performance.pdf}
-
+  \vspace{-5pt}
+  \hspace{-15pt}
+    \includegraphics[trim=20pt 0 50pt 5pt, clip, width=1.0\textwidth]{figures/Exercise04-Performance.png}
   \vspace{-15pt}
 
-  \begin{textblock*}{0.5\textwidth}(0.65\textwidth,0.28\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.69\textwidth,0.30\textheight)
     \textbf{coalesced}
   \end{textblock*}
 
-  \begin{textblock*}{0.5\textwidth}(0.60\textwidth,0.44\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.35\textwidth,0.65\textheight)
     \textbf{cached}
   \end{textblock*}
 
-  \begin{textblock*}{0.5\textwidth}(0.60\textwidth,0.61\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.65\textwidth,0.56\textheight)
     \textbf{uncoalesced}
   \end{textblock*}
 
-  \begin{textblock*}{0.5\textwidth}(0.70\textwidth,0.68\textheight)
-    \textbf{cached}
-  \end{textblock*}
-
-  \begin{textblock*}{0.5\textwidth}(0.70\textwidth,0.77\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.71\textwidth,0.78\textheight)
     \textbf{uncached}
   \end{textblock*}
 
diff --git a/Content/Presentations/sections/Section_MemoryAccessPatterns.tex b/Content/Presentations/sections/Section_MemoryAccessPatterns.tex
index 8eafaf25..1123e1b9 100644
--- a/Content/Presentations/sections/Section_MemoryAccessPatterns.tex
+++ b/Content/Presentations/sections/Section_MemoryAccessPatterns.tex
@@ -143,10 +143,9 @@
 \begin{frame}[fragile]{Exercise \#4: Inner Product, Flat Parallelism}
 
 
-  \vspace{-10pt}
-
-    \includegraphics[viewport=1.25in 3.0in 10in 6in, width=0.95\textwidth]{figures/Exercise04-Performance.pdf}
-
+  \vspace{-5pt}
+  \hspace{-15pt}
+    \includegraphics[trim=20pt 0 50pt 5pt, clip, width=1.0\textwidth]{figures/Exercise04-Performance.png}
   \vspace{-15pt}
 
   \begin{textblock*}{0.5\textwidth}(0.97\textwidth,0.50\textheight)
@@ -489,29 +488,24 @@
 
 \begin{frame}[fragile]{Example: inner product (5)}
 
-  \vspace{-10pt}
-
-    \includegraphics[viewport=1.25in 3.0in 10in 6in, width=0.95\textwidth]{figures/Exercise04-Performance.pdf}
-
+  \vspace{-5pt}
+  \hspace{-15pt}
+    \includegraphics[trim=20pt 0 50pt 5pt, clip, width=1.0\textwidth]{figures/Exercise04-Performance.png}
   \vspace{-15pt}
 
-  \begin{textblock*}{0.5\textwidth}(0.65\textwidth,0.28\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.69\textwidth,0.30\textheight)
     \textbf{coalesced}
   \end{textblock*}
 
-  \begin{textblock*}{0.5\textwidth}(0.60\textwidth,0.44\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.35\textwidth,0.65\textheight)
     \textbf{cached}
   \end{textblock*}
 
-  \begin{textblock*}{0.5\textwidth}(0.60\textwidth,0.61\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.65\textwidth,0.56\textheight)
     \textbf{uncoalesced}
   \end{textblock*}
 
-  \begin{textblock*}{0.5\textwidth}(0.70\textwidth,0.72\textheight)
-    \textbf{cached}
-  \end{textblock*}
-
-  \begin{textblock*}{0.5\textwidth}(0.70\textwidth,0.77\textheight)
+  \begin{textblock*}{0.5\textwidth}(0.71\textwidth,0.78\textheight)
     \textbf{uncached}
   \end{textblock*}