diff --git a/host_python/demo.py b/host_python/demo.py
index 929b445..6409d11 100755
--- a/host_python/demo.py
+++ b/host_python/demo.py
@@ -64,6 +64,7 @@ def main():
                 b = read_byte()
                 pygame.draw.rect(screen, [r, g, b], [pixel_width*i, 0, pixel_width-offset, pixel_width-offset])
                 write_byte(r); write_byte(g); write_byte(b)
+            sys.stdout.flush()
             pygame.display.flip()
     except EOFError:
         pass
diff --git a/host_python/send_to_serial.py b/host_python/send_to_serial.py
index f9b4d3b..380f8ad 100755
--- a/host_python/send_to_serial.py
+++ b/host_python/send_to_serial.py
@@ -2,6 +2,7 @@
 # vim:et:sw=4:ts=4:sts=4
 
 import sys
+import time
 import serial
 import getopt
 
@@ -49,6 +50,7 @@ def main():
     except serial.serialutil.SerialException:
         print 'Could not open the serial device'
         return 1
+    time.sleep(2)
 
     try:
         while True: