diff --git a/processing/app/PdeRuntime.java b/processing/app/PdeRuntime.java
index 6b9fb1bb9..1b49ac54c 100644
--- a/processing/app/PdeRuntime.java
+++ b/processing/app/PdeRuntime.java
@@ -103,7 +103,6 @@ public class PdeRuntime implements PdeMessageConsumer {
         //PApplet.println(PApplet.join(command, " "));
         process = Runtime.getRuntime().exec(command);
         new SystemOutSiphon(process.getInputStream());
-        //new PdeMessageSiphon(process.getErrorStream(), this);
         new PdeMessageSiphon(process.getErrorStream(), this);
         processOutput = process.getOutputStream();
 
@@ -436,18 +435,22 @@ java.lang.NullPointerException
           if (colonIndex != -1) {
             String filename = fileAndLine.substring(0, colonIndex);
             // "javatest.java" and "5"
+            //System.out.println("filename = " + filename);
+            //System.out.println("pre0 = " + sketch.code[0].preprocName);
             for (int i = 0; i < sketch.codeCount; i++) {
               if (sketch.code[i].preprocName.equals(filename)) {
                 codeIndex = i;
                 break;
               }
             }
-            // lineIndex is 1-indexed, but editor wants zero-indexed
-            lineIndex = Integer.parseInt(fileAndLine.substring(colonIndex + 1));
-            //System.out.println("code/line is " + codeIndex + " " + lineIndex);
-            exception = new PdeException(exception.getMessage(),
-                                         codeIndex, lineIndex - 1, -1);
-            foundMessageSource = true;
+            if (codeIndex != -1) {
+              // lineIndex is 1-indexed, but editor wants zero-indexed
+              lineIndex = Integer.parseInt(fileAndLine.substring(colonIndex + 1));
+              //System.out.println("code/line is " + codeIndex + " " + lineIndex);
+              exception = new PdeException(exception.getMessage(),
+                                           codeIndex, lineIndex - 1, -1);
+              foundMessageSource = true;
+            }
           }
         }
         editor.error(exception);
@@ -527,14 +530,13 @@ java.lang.NullPointerException
     public void run() {
       byte boofer[] = new byte[1024];
 
+      // read, block until something good comes through
       while (Thread.currentThread() == thread) {
-        // read, block until something good comes through
-        //if (input.available() > 0) {
         try {
           int count = input.read(boofer, 0, boofer.length);
-          if (count == -1) break;
+          if (count == -1) thread = null;
           //System.out.print("bc" + count + " " + new String(boofer, 0, count));
-          
+          //PApplet.println(boofer);
 
         } catch (IOException e) {
           thread = null;
diff --git a/processing/core/PApplet.java b/processing/core/PApplet.java
index 1e9aa11ec..1093a4520 100644
--- a/processing/core/PApplet.java
+++ b/processing/core/PApplet.java
@@ -952,6 +952,11 @@ public class PApplet extends Applet
   // ------------------------------------------------------------
 
 
+  static public void print(byte what) {
+    System.out.print(what);
+    System.out.flush();
+  }
+
   static public void print(boolean what) {
     System.out.print(what);
     System.out.flush();
@@ -989,6 +994,11 @@ public class PApplet extends Applet
 
   //
 
+  static public void print(byte what[]) {
+    for (int i = 0; i < what.length; i++) System.out.print(what[i]);
+    System.out.flush();
+  }
+
   static public void print(boolean what[]) {
     for (int i = 0; i < what.length; i++) System.out.print(what[i]);
     System.out.flush();
@@ -1026,6 +1036,10 @@ public class PApplet extends Applet
 
   //
 
+  static public void println(byte what) {
+    print(what); System.out.println();
+  }
+
   static public void println(boolean what) {
     print(what); System.out.println();
   }
@@ -1060,6 +1074,11 @@ public class PApplet extends Applet
 
   //
 
+  static public void println(byte what[]) {
+    for (int i = 0; i < what.length; i++) System.out.println(what[i]);
+    System.out.flush();
+  }
+
   static public void println(boolean what[]) {
     for (int i = 0; i < what.length; i++) System.out.println(what[i]);
     System.out.flush();
diff --git a/processing/todo.txt b/processing/todo.txt
index efbf66c43..bfc15310d 100644
--- a/processing/todo.txt
+++ b/processing/todo.txt
@@ -4,6 +4,11 @@ X   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs
 X fixed one bug in PdeRuntime error message stuff 
 X   was this the big one? a big one?
 
+040715 late
+X threading issues resolved
+X fixed bug with errors not coming through
+X fixed bug with errors not being recognized amonst exceptions
+
 _ moving p5 prefs on mac into documents? or inside sketchbook?
 _   Documents -> Processing -> preferences.txt
 _   do the same for windows, with sketchbook as a subfolder