diff --git a/ChangeLog b/ChangeLog
index 4ebb9b85b..c949b0202 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -11,7 +11,7 @@
 	- Allow volume bars to be modified by clicking one bar, then 
 	sweeping the mouse
 	- shade volume bars according to volume
-
+	- fixed drawing of background while scrolling
 
 2008-04-20	Tobias Doerffel	<tobydox/at/users/dot/sourceforge/dot/net>
 
diff --git a/src/gui/piano_roll.cpp b/src/gui/piano_roll.cpp
index 3069afbfe..eef9e00e7 100644
--- a/src/gui/piano_roll.cpp
+++ b/src/gui/piano_roll.cpp
@@ -1819,7 +1819,8 @@ void pianoRoll::paintEvent( QPaintEvent * _pe )
 	// draw vertical raster
 	int tact_16th = m_currentPosition / ( DefaultTicksPerTact / 16 );
 	const int offset = ( m_currentPosition % (DefaultTicksPerTact/16) ) *
-					m_ppt / DEFAULT_STEPS_PER_TACT / 8;
+					m_ppt / DefaultTicksPerTact;
+
 	for( int x = WHITE_KEY_WIDTH - offset; x < width();
 			x += m_ppt / DEFAULT_STEPS_PER_TACT, ++tact_16th )
 	{