diff --git a/lightningbeam.py b/lightningbeam.py
index af9afda..8344e18 100755
--- a/lightningbeam.py
+++ b/lightningbeam.py
@@ -3,7 +3,7 @@
 # © 2012 Skyler Lehmkuhl
 # Released under the GPLv3. For more information, see gpl.txt.
 
-import os, shutil, tarfile, tempfile, StringIO
+import os, shutil, tarfile, tempfile, StringIO, urllib
 
 # Workaround for broken menubar under Ubuntu
 os.putenv("UBUNTU_MENUPROXY", "0")
@@ -233,6 +233,28 @@ def run_file(self=None):
 		logloc = os.getenv('HOME')+"/.macromedia/Flash_Player/Logs/flashlog.txt"
 	elif svlgui.PLATFORM=="osx":
 		logloc = os.getenv('HOME')+"/Library/Preferences/Macromedia/Flash Player/Logs/flashlog.txt"
+		if not os.path.exists('/Applications/Flash Player Debugger.app'):
+			# check for Flash Player
+			result = svlgui.alert("You do not have a Flash debugger installed. Install one?", confirm=True)
+			if not result:
+				svlgui.alert("Aborting.")
+				return
+			else:
+				svlgui.alert("The file will download when you click Ok.\nThis may take some time.")
+				urllib.urlretrieve("http://fpdownload.macromedia.com/pub/flashplayer/updaters/11/flashplayer_11_sa_debug.app.zip", "fp.app.zip")
+				# Unzip the file. Apparently ditto is better for OSX apps than unzip.
+				os.system('ditto -V -x -k --sequesterRsrc --rsrc fp.app.zip .')
+				shutil.move('Flash Player Debugger.app', '/Applications')
+				os.system('open -a "/Applications/Flash Player Debugger.app"')
+				os.system('defaults write com.apple.LaunchServices LSHandlers -array-add "<dict><key>LSHandlerContentTag</key><string>swf</string><key>LSHandlerContentTagClass</key><string>public.filename-extension</string><key>LSHandlerRoleAll</key><string>com.macromedia.flash player debugger.app</string></dict>"')
+				os.system("/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system -domain user")
+				svlgui.alert("Downloaded!")
+		if not os.path.exists(os.getenv('HOME')+'/mm.cfg'):
+			with open(os.getenv('HOME')+'/mm.cfg', "w") as mm:
+				mm.write("ErrorReportingEnable=1\nTraceOutputFileEnable=1")
+			os.mkdir(os.getenv('HOME')+"/Library/Preferences/Macromedia/Flash Player/Logs")
+			with open(logloc, "w") as f:
+				f.write("")
 	try:
 		logfile.close()
 	except:
@@ -247,8 +269,8 @@ def run_file(self=None):
 	logfile = open(logloc, "r")
 	def updatetrace(outputtext):
 		try:
-			print logfile.readline()
-			# outputtext.text+=logfile.readline()
+			# print logfile.readline()
+			outputtext.text+=logfile.readline()
 			outputtext.scroll_bottom()		# this doesn't work
 		except:
 			pass
diff --git a/svlgui.py b/svlgui.py
index ef2927f..0c4e920 100644
--- a/svlgui.py
+++ b/svlgui.py
@@ -387,7 +387,7 @@ class htmlobj:
 		return str(self)
 
 class Window:
-	def __init__(self, title=""):
+	def __init__(self, title="", closable=True):
 		__windowlist__.append(self)
 		if SYSTEM=="gtk":
 			self.window = gtk.Window()
@@ -396,7 +396,7 @@ class Window:
 			self.window.show_all()
 			self.window.connect("destroy",self.destroy)
 		elif SYSTEM=="osx":
-			self.window = LightningbeamWindow(width=1024,height=500)
+			self.window = LightningbeamWindow(width=1024,height=500, closable=closable)
 			if not title=="":
 				self.window.title = title
 			#components = [i._int() for i in args]
@@ -2511,7 +2511,7 @@ def set_cursor(curs, widget=None):
 		else:
 			print "Sorry, I don't have that cursor."
 
-def alert(text,critical=False):
+def alert(text,critical=False,confirm=False,async=False):
 	'''Launches an alert window with a given text.
 	If critical is True, closing the alert terminates SWIFT.'''
 	if SYSTEM=="gtk":
@@ -2556,7 +2556,17 @@ def alert(text,critical=False):
 			Alerts.stop_alert(text)			# stop_alert is a critical error alert
 			sys.exit(0)						# Exit to OS. Sometimes we can't recover an error.
 		else:
-			Alerts.note_alert(text)			# note_alert is a general alert, i.e. "I'm a computer."
+			if confirm:
+				return Alerts.confirm(text)
+			else:
+				if async:
+					a = ModalDialog()
+					a.place(OSXLabel(text=text),left=0,top=0,right=0,bottom=0,sticky="nesw")
+					a.show()
+					a.present()
+					return a
+				else:
+					Alerts.note_alert(text)			# note_alert is a general alert, i.e. "I'm a computer."
 	elif SYSTEM=="html":
 		jscommunicate("alert("+text+")")
 		if critical: