diff -Nru autoswitcher-2.0-1/autoswitcher.py autoswitcher-2.0-2/autoswitcher.py
--- autoswitcher-2.0-1/autoswitcher.py	2011-06-26 22:11:52.000000000 +0000
+++ autoswitcher-2.0-2/autoswitcher.py	2011-06-29 19:04:25.000000000 +0000
@@ -164,10 +164,12 @@
 			
 			displays = self.listDisplays() - set([self.sw.get_primary_display()])
 			displays_data = self.getDisplays()
+			del displays_data[self.sw.get_primary_display()]
 			
 			resolutions = [displays_data[display]['nativeResolution'] for display in displays]
-			resolution = self.get_minimum_resolution(resolutions)
-
+			# Assumes all external monitors of same resolution as last in list.
+			resolution = resolutions.pop()
+			
 			if self.debug: print "Display Resolution Detected:", resolution
 			self.sw.switch_clone(displays, resolution)
 			self.sw.set_scaling(displays, "default")
@@ -217,13 +219,6 @@
 			n = pynotify.Notification(text, description, "monitor")
 			n.show()
 
-	def get_minimum_resolution(self, resolution_list):
-		# Returns resolution with minimum x size, assumes all display sizes are simmilar aspect ratios and would not overlap in one axis but not another
-		rx = min(zip(*map(lambda a: a.size(), resolution_list))[0])
-		for resolution in resolution_list:
-			if resolution.size()[0] == rx: return resolution
-		#return (min(zip(*map(lambda a: a.size(), resolution_list))[0]), min(zip(*map(lambda a: a.size(), resolution_list))[1]))
-
 	def user_changed(self, ev, mode):
 		self.mode = mode
 		self.set_display_mode(self.mode, self.direction)
diff -Nru autoswitcher-2.0-1/debian/changelog autoswitcher-2.0-2/debian/changelog
--- autoswitcher-2.0-1/debian/changelog	2011-06-26 22:14:44.000000000 +0000
+++ autoswitcher-2.0-2/debian/changelog	2011-06-29 19:12:17.000000000 +0000
@@ -1,3 +1,27 @@
+autoswitcher (2.0-2-3) oneiric; urgency=low
+
+  * Corrects a mode detection issue
+
+ -- Chris Hughes <89dragon@gmail.com>  Wed, 29 June 2011 12:10:30 -0800
+
+autoswitcher (2.0-2-2) natty; urgency=low
+
+  * Corrects a mode detection issue
+
+ -- Chris Hughes <89dragon@gmail.com>  Wed, 29 June 2011 12:10:30 -0800
+
+autoswitcher (2.0-2-1) maverick; urgency=low
+
+  * Corrects a mode detection issue
+
+ -- Chris Hughes <89dragon@gmail.com>  Wed, 29 June 2011 12:10:30 -0800
+
+autoswitcher (2.0-2) lucid; urgency=low
+
+  * Corrects a mode detection issue
+
+ -- Chris Hughes <89dragon@gmail.com>  Wed, 29 June 2011 12:10:30 -0800
+
 autoswitcher (2.0-1-3) oneiric; urgency=low
 
   * Corrects a disabled error catching mechanism