1 files changed, 28 insertions, 6 deletions
diff --git a/Source/SPProcessListController.m b/Source/SPProcessListController.m
index 84cd32e8..8290b5d9 100644
--- a/Source/SPProcessListController.m
+++ b/Source/SPProcessListController.m
@@ -54,6 +54,8 @@ static NSString *SPTableViewIDColumnIdentifier = @"Id";
 - (void)_killProcessQueryWithId:(long long)processId;
 - (void)_killProcessConnectionWithId:(long long)processId;
 - (void)_updateServerProcessesFilterForFilterString:(NSString *)filterString;
+- (void)_addPreferenceObservers;
+- (void)_removePreferenceObservers;
 
 @end
 
@@ -111,9 +113,8 @@ static NSString *SPTableViewIDColumnIdentifier = @"Id";
 				
 		if (columnWidth) [column setWidth:[columnWidth floatValue]];
 	}
-	
-	// Register as an observer for the when the UseMonospacedFonts preference changes
-	[prefs addObserver:self forKeyPath:SPUseMonospacedFonts options:NSKeyValueObservingOptionNew context:NULL];
+
+	[self _addPreferenceObservers];
 }
 
 /**
@@ -760,14 +761,35 @@ static NSString *SPTableViewIDColumnIdentifier = @"Id";
 	[saveProcessesButton setTitle:NSLocalizedString(@"Save View As...", @"save view as button title")];
 }
 
+/**
+ * Add any necessary preference observers to allow live updating on changes.
+ */
+- (void)_addPreferenceObservers
+{
+	// Register as an observer for the when the UseMonospacedFonts preference changes
+	[prefs addObserver:self forKeyPath:SPUseMonospacedFonts options:NSKeyValueObservingOptionNew context:NULL];
+
+	// Register to obeserve table view vertical grid line pref changes
+	[prefs addObserver:self forKeyPath:SPDisplayTableViewVerticalGridlines options:NSKeyValueObservingOptionNew context:NULL];
+}
+
+/**
+ * Remove any previously added preference observers.
+ */
+- (void)_removePreferenceObservers
+{
+	[prefs removeObserver:self forKeyPath:SPUseMonospacedFonts];
+	[prefs removeObserver:self forKeyPath:SPDisplayTableViewVerticalGridlines];
+}
+
 #pragma mark -
 
 - (void)dealloc
 {
-	[prefs removeObserver:self forKeyPath:SPUseMonospacedFonts];
-	
 	processListThreadRunning = NO;
-	
+
+	[self _removePreferenceObservers];
+
 	SPClear(processes);
 	
 	if (autoRefreshTimer) SPClear(autoRefreshTimer);