diff --git a/gui/Gui/Icon.py b/gui/Gui/Icon.py
index 60919e2..036e145 100644
--- a/gui/Gui/Icon.py
+++ b/gui/Gui/Icon.py
@@ -35,7 +35,12 @@ import Misc
 
 def ScytherIcon(window):
         """ Set a nice Scyther icon """
-        basedir = os.path.abspath(os.path.dirname(sys.argv[0]))
+        import os,inspect
+
+        # Determine base directory (taking symbolic links into account)
+        cmd_file = os.path.realpath(os.path.abspath(inspect.getfile( inspect.currentframe() )))
+        basedir = os.path.split(cmd_file)[0]
+
         path = os.path.join(basedir,"Images")
         iconfile = Misc.mypath(os.path.join(path,"scyther-gui-32.ico"))
         if os.path.isfile(iconfile):
diff --git a/gui/Gui/Misc.py b/gui/Gui/Misc.py
index b60d8e9..ba2bc5b 100644
--- a/gui/Gui/Misc.py
+++ b/gui/Gui/Misc.py
@@ -60,7 +60,11 @@ def sorted(li):
 def mypath(file):
     """ Construct a file path relative to the scyther-gui main directory
     """
-    basedir = os.path.dirname(__file__)
+    import os, inspect
+
+    # Determine base directory (taking symbolic links into account)
+    cmd_file = os.path.realpath(os.path.abspath(inspect.getfile( inspect.currentframe() )))
+    basedir = os.path.split(cmd_file)[0]
     return os.path.join(basedir,file)
 
 # commands: push data in, get fp.write out
diff --git a/gui/Scyther/Misc.py b/gui/Scyther/Misc.py
index cf37b0b..503dfc2 100644
--- a/gui/Scyther/Misc.py
+++ b/gui/Scyther/Misc.py
@@ -84,7 +84,9 @@ def ensurePath(pt):
 def mypath(file):
     """ Construct a file path relative to the scyther-gui main directory
     """
-    basedir = os.path.dirname(__file__)
+    # Determine base directory (taking symbolic links into account)
+    cmd_file = os.path.realpath(os.path.abspath(inspect.getfile( inspect.currentframe() )))
+    basedir = os.path.split(cmd_file)[0]
     return os.path.join(basedir,file)
 
 def getShell():
diff --git a/gui/scyther-gui.py b/gui/scyther-gui.py
index 1a6a0c7..ff7577a 100755
--- a/gui/scyther-gui.py
+++ b/gui/scyther-gui.py
@@ -179,11 +179,15 @@ def isSplashNeeded(opts):
 
 class ScytherApp(wx.App):
     def OnInit(self):
+        import os, inspect
 
         wx.GetApp().SetAppName("Scyther-gui")
 
+        # Determine base directory (taking symbolic links into account)
+        cmd_file = os.path.realpath(os.path.abspath(inspect.getfile( inspect.currentframe() )))
+        basedir = os.path.split(cmd_file)[0]
+
         # Parse arguments
-        basedir = os.path.abspath(os.path.dirname(sys.argv[0]))
         (opts,args) = parseArgs()
 
         # License option may abort here