diff --git a/RF24.cpp b/RF24.cpp
index 0d5e99e..ddd9f02 100644
--- a/RF24.cpp
+++ b/RF24.cpp
@@ -220,14 +220,14 @@ void RF24::printDetails(void)
   uint8_t buffer[5];
   uint8_t status = read_register(RX_ADDR_P0,buffer,5);
   print_status(status);
-  printf("RX_ADDR_P0 = 0x",buffer);
+  printf("RX_ADDR_P0 = 0x");
   uint8_t *bufptr = buffer + 5;
   while( bufptr-- > buffer )
     printf("%02x",*bufptr);
   printf("\n\r");
 
   status = read_register(RX_ADDR_P1,buffer,5);
-  printf("RX_ADDR_P1 = 0x",buffer);
+  printf("RX_ADDR_P1 = 0x");
   bufptr = buffer + 5;
   while( bufptr-- > buffer )
     printf("%02x",*bufptr);
@@ -242,7 +242,7 @@ void RF24::printDetails(void)
   printf("\n\r");
 
   status = read_register(TX_ADDR,buffer,5);
-  printf("TX_ADDR = 0x",buffer);
+  printf("TX_ADDR = 0x");
   bufptr = buffer + 5;
   while( bufptr-- > buffer )
     printf("%02x",*bufptr);
@@ -451,5 +451,5 @@ void RF24::openReadingPipe(uint8_t child, uint64_t value)
     write_register(EN_RXADDR,en_rx);
   }
 }
-// vim:ai sts=2 sw=2 ft=cpp
+// vim:ai:cin:sts=2 sw=2 ft=cpp
 
diff --git a/RF24.h b/RF24.h
index 0975fdf..4c4e653 100644
--- a/RF24.h
+++ b/RF24.h
@@ -347,5 +347,5 @@ public:
  */
 
 #endif // __RF24_H__
-// vim:ai sts=2 sw=2 ft=cpp
+// vim:ai:cin:sts=2 sw=2 ft=cpp
 
diff --git a/examples/pingpair/makefile b/examples/pingpair/makefile
index 55a4885..a1c6d4c 100644
--- a/examples/pingpair/makefile
+++ b/examples/pingpair/makefile
@@ -139,8 +139,8 @@ CXXINCS = -I$(ARDUINO_CORE) -I$(ARDUINO_LIB)
 #CSTANDARD = -std=gnu99
 CDEBUG 		= -g$(DEBUG)
 #CWARN 		= -Wall -Wstrict-prototypes
-#CWARN 		= -Wall   # show all warnings
-CWARN 		= -w      # suppress all warnings
+CWARN 		= -Wall   # show all warnings
+#CWARN 		= -w      # suppress all warnings
 CMAP		= -Wl,-Map,output.map 
 ####CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
 CTUNING = -ffunction-sections -fdata-sections
@@ -198,6 +198,7 @@ build: elf hex
 output/$(PROJECT_NAME).cpp: $(PROJECT_NAME).pde
 	test -d output || mkdir output
 	echo "#include <WProgram.h>" > $@ 
+	echo "#line 1 \"$<\"" >> $@ 
 	cat $< >> $@ 
 
 elf: output/$(PROJECT_NAME).elf
diff --git a/examples/pingpair/pingpair.pde b/examples/pingpair/pingpair.pde
index 3a1cf41..b0b3f0e 100644
--- a/examples/pingpair/pingpair.pde
+++ b/examples/pingpair/pingpair.pde
@@ -29,7 +29,7 @@
 RF24 radio(8,9);
 
 // sets the role of this unit in hardware.  Connect to GND to be the 'pong' receiver
-// Leave open to be the 'pong' receiver.
+// Leave open to be the 'ping' transmitter 
 const int role_pin = 7;
 
 //
@@ -137,7 +137,7 @@ void loop(void)
     // Take the time, and send it.  This will block until complete
     unsigned long time = millis();
     printf("Now sending %lu...",time);
-    bool ok = radio.write( &time, sizeof(unsigned long) );  
+    radio.write( &time, sizeof(unsigned long) );  
     
     // Now, continue listening
     radio.startListening();
diff --git a/examples/pingpair/printf.h b/examples/pingpair/printf.h
index 52e0c89..63501e4 100644
--- a/examples/pingpair/printf.h
+++ b/examples/pingpair/printf.h
@@ -21,6 +21,8 @@
 int serial_putc( char c, FILE *t ) 
 {
   Serial.write( c );
+
+  return c;
 } 
 
 void printf_begin(void)
diff --git a/examples/starping/makefile b/examples/starping/makefile
index 42aa4e0..935d5dc 100644
--- a/examples/starping/makefile
+++ b/examples/starping/makefile
@@ -140,8 +140,8 @@ CXXINCS = -I$(ARDUINO_CORE) -I$(ARDUINO_LIB)
 #CSTANDARD = -std=gnu99
 CDEBUG 		= -g$(DEBUG)
 #CWARN 		= -Wall -Wstrict-prototypes
-#CWARN 		= -Wall   # show all warnings
-CWARN 		= -w      # suppress all warnings
+CWARN 		= -Wall   # show all warnings
+#CWARN 		= -w      # suppress all warnings
 CMAP		= -Wl,-Map,output.map 
 ####CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
 CTUNING = -ffunction-sections -fdata-sections
diff --git a/examples/starping/printf.h b/examples/starping/printf.h
index 52e0c89..63501e4 100644
--- a/examples/starping/printf.h
+++ b/examples/starping/printf.h
@@ -21,6 +21,8 @@
 int serial_putc( char c, FILE *t ) 
 {
   Serial.write( c );
+
+  return c;
 } 
 
 void printf_begin(void)
diff --git a/examples/starping/starping.pde b/examples/starping/starping.pde
index f3c4e9c..828b07d 100644
--- a/examples/starping/starping.pde
+++ b/examples/starping/starping.pde
@@ -201,7 +201,7 @@ void loop(void)
     // Take the time, and send it.  This will block until complete
     unsigned long time = millis();
     printf("Now sending %lu...",time);
-    bool ok = radio.write( &time, sizeof(unsigned long) );  
+    radio.write( &time, sizeof(unsigned long) );  
     
     // Now, continue listening
     radio.startListening();