diff --git a/pyad2usb/ad2usb.py b/pyad2usb/ad2usb.py
index 743e2fe..f800c64 100644
--- a/pyad2usb/ad2usb.py
+++ b/pyad2usb/ad2usb.py
@@ -22,6 +22,8 @@ class Overseer(object):
 
     @classmethod
     def create(cls, device=None):
+        cls.find_all()
+
         if len(cls.__devices) == 0:
             raise util.NoDeviceError('No AD2USB devices present.')
 
@@ -53,7 +55,8 @@ class Overseer(object):
         self.stop()
 
     def start(self):
-        self._detect_thread.start()
+        if not self._detect_thread.is_alive():
+            self._detect_thread.start()
 
     def stop(self):
         self._detect_thread.stop()
diff --git a/test.py b/test.py
index 551f130..fecd048 100755
--- a/test.py
+++ b/test.py
@@ -39,19 +39,22 @@ try:
 
     #print pyad2usb.ad2usb.devices.SerialDevice.find_all()
 
-    #dev = overseer.get_device()
+    #a2u = overseer.get_device()
+
+    a2u = pyad2usb.ad2usb.Overseer.create()
 
-    #dev = pyad2usb.ad2usb.Overseer.create()
     #dev = pyad2usb.ad2usb.devices.SerialDevice(interface='/dev/ttyUSB0')
-    dev = pyad2usb.ad2usb.devices.USBDevice()#serial='A101A429', description='FT232R USB UART')
+    #dev = pyad2usb.ad2usb.devices.USBDevice()#serial='A101A429', description='FT232R USB UART')
 
-    a2u = pyad2usb.ad2usb.AD2USB(dev)
+    #a2u = pyad2usb.ad2usb.AD2USB(dev)
     a2u.on_open += handle_open
     a2u.on_close += handle_close
     a2u.on_read += handle_read
     a2u.on_write += handle_write
-    #a2u.open(baudrate=19200, interface='/dev/ttyUSB0')
+
     a2u.open()
+    #a2u.open(baudrate=19200, interface='/dev/ttyUSB0')
+
     #dev.open(baudrate=115200, interface='/dev/ttyUSB5')
     #dev.open(baudrate=19200, interface='/dev/ttyUSB0')
     #dev.open()
@@ -63,7 +66,6 @@ try:
     #dev.close()
     #overseer.close()
 
-    #wut.close()
 except Exception, err:
     #print 'Error: {0}'.format(str(err))
     traceback.print_exc(err)