diff --git a/ddresc_visu/draw.py b/ddresc_visu/draw.py
index 9063d5f..4f4fb9e 100644
--- a/ddresc_visu/draw.py
+++ b/ddresc_visu/draw.py
@@ -3,7 +3,7 @@ from .mapfile import MapFile
 import pygame
 
 colors = {
-	'?' : (192, 192, 192), # Non-tried
+	'?' : (64 , 64 , 64) , # Non-tried
 	'*' : (0  , 0  , 255), # Non-trimmed
 	'/' : (255, 255, 0)  , # Non-scraped
 	'-' : (255, 0  , 0)  , # Bad
@@ -15,7 +15,7 @@ colors = {
 BORDERCOLOR = (64,64,64)
 
 W = 1920
-H = 1080
+H = 1040
 CELLSIZE = 8
 CELLBORDER = 0
 CELLMARGIN = 3
@@ -39,6 +39,8 @@ def get_symb(hist):
 class Visualisation:
 	def __init__(self, fn, **kwargs):
 		pygame.init()
+		# https://stackoverflow.com/questions/46160971/pygame-full-core-usage-in-simple-loop
+		pygame.mixer.quit()
 		self.disp = pygame.display.set_mode((W, H))
 
 		self.mapfile = MapFile(fn, **kwargs)
diff --git a/test.py b/test.py
index faef106..0909bf2 100755
--- a/test.py
+++ b/test.py
@@ -32,4 +32,4 @@ visu = v.Visualisation(args.file, start=args.start, end=args.end)
 
 
 
-visu.run(refresh=5)
+visu.run(refresh=35)