diff --git a/demos/modules/gadc/gwinosc.h b/demos/modules/gadc/gwinosc.h
index 8f5c1be3..0c687a4f 100644
--- a/demos/modules/gadc/gwinosc.h
+++ b/demos/modules/gadc/gwinosc.h
@@ -43,7 +43,7 @@
 
 /* The extent of scaling for our audio data - fixed scale at the moment */
 #ifndef SCOPE_Y_BITS
-	#define SCOPE_Y_BITS			7					// 7 bits = 0..128
+	#define SCOPE_Y_BITS		7					// 7 bits = 0..128
 #endif
 
 /* Trigger methods */
diff --git a/demos/modules/gadc/main.c b/demos/modules/gadc/main.c
index 67eed456..7db14c82 100644
--- a/demos/modules/gadc/main.c
+++ b/demos/modules/gadc/main.c
@@ -171,7 +171,7 @@ int main(void) {
 	 * Allocate buffers for the high speed GADC device - eg. 4 x 128 byte buffers.
 	 *	You may need to increase this for slower cpu's.
 	 *	You may be able to decrease this for low latency operating systems.
-	 *	10 x 128 seems to work on the really slow Olimex SAM7EX256 board (display speed limitation)
+	 *	4 x 128 seems to work on the really slow Olimex SAM7EX256 board (display speed limitation)
 	 * If your oscilloscope display stops but the low speed reading keep going then it is likely that
 	 * 	your high speed timer has stalled due to running out of free buffers. Increase the number
 	 * 	of buffers..
@@ -179,7 +179,7 @@ int main(void) {
 	 * 	the low speed items to occur in which case your memory will fill up with low speed requests until
 	 * 	you run out of memory.
 	 */
-	gfxBufferAlloc(10, 128);
+	gfxBufferAlloc(4, 128);
 
 	/* Set up the scope window in the top right on the screen */
 	{
diff --git a/demos/modules/gaudio/oscilloscope/main.c b/demos/modules/gaudio/oscilloscope/main.c
index 9b53de8e..3636e8f9 100644
--- a/demos/modules/gaudio/oscilloscope/main.c
+++ b/demos/modules/gaudio/oscilloscope/main.c
@@ -59,11 +59,11 @@ int main(void) {
 	 * Allocate audio buffers - eg. 4 x 128 byte buffers.
 	 *	You may need to increase this for slower cpu's.
 	 *	You may be able to decrease this for low latency operating systems.
-	 *	16 x 256 seems to work on the really slow Olimex SAM7EX256 board (display speed limitation) @8kHz
+	 *	8 x 256 seems to work on the really slow Olimex SAM7EX256 board (display speed limitation) @8kHz
 	 * If your oscilloscope display stops then it is likely that your driver has stalled due to running
 	 *  out of free buffers. Increase the number of buffers..
 	 */
-	gfxBufferAlloc(16, 256);
+	gfxBufferAlloc(8, 256);
 
 	/* Get the screen dimensions */
 	swidth = gdispGetWidth();