diff --git a/mainscripts/Extractor.py b/mainscripts/Extractor.py
index ea6a47f..ea2544f 100644
--- a/mainscripts/Extractor.py
+++ b/mainscripts/Extractor.py
@@ -62,10 +62,13 @@ class ExtractSubprocessor(SubprocessorBase):
     
     def get_devices_for_type (self, type, multi_gpu):
         if (type == 'rects' or type == 'landmarks'):
-            if not multi_gpu:            
-                devices = [nnlib.device.getBestDeviceIdx()]
-            else:
+            if multi_gpu:
                 devices = nnlib.device.getDevicesWithAtLeastTotalMemoryGB(2)
+            else:
+                devices = [nnlib.device.getBestDeviceIdx()]
+                if devices[0] == -1:
+                    devices = []
+                    
             devices = [ (idx, nnlib.device.getDeviceName(idx), nnlib.device.getDeviceVRAMTotalGb(idx) ) for idx in devices]
 
         elif type == 'final':
@@ -82,32 +85,35 @@ class ExtractSubprocessor(SubprocessorBase):
                      'output_dir': str(self.output_path), 
                      'detector': self.detector}
     
-        if self.cpu_only:         
-            num_processes = 1
-            if not self.manual and self.type == 'rects' and self.detector == 'mt':
-                num_processes = int ( max (1, multiprocessing.cpu_count() / 2 ) )
-            
-            for i in range(0, num_processes ):
-                client_dict = base_dict.copy()
-                client_dict['device_idx'] = 0
-                client_dict['device_name'] = 'CPU' if num_processes == 1 else 'CPU #%d' % (i),
-                client_dict['device_type'] = 'CPU'
-                
-                yield client_dict['device_name'], {}, client_dict
+        if not self.cpu_only:
+            devices = self.get_devices_for_type(self.type, self.multi_gpu)
+            if len(devices) != 0:
+                for (device_idx, device_name, device_total_vram_gb) in devices: 
+                    num_processes = 1
+                    if not self.manual and self.type == 'rects' and self.detector == 'mt':
+                        num_processes = int ( max (1, device_total_vram_gb / 2) )
+                        
+                    for i in range(0, num_processes ):
+                        client_dict = base_dict.copy()
+                        client_dict['device_idx'] = device_idx
+                        client_dict['device_name'] = device_name if num_processes == 1 else '%s #%d' % (device_name,i)
+                        client_dict['device_type'] = 'GPU'
+                        
+                        yield client_dict['device_name'], {}, client_dict
+                return
+            print ("No capable GPU's found, falling back to CPU mode.")
+
+        num_processes = 1
+        if not self.manual and self.type == 'rects' and self.detector == 'mt':
+            num_processes = int ( max (1, multiprocessing.cpu_count() / 2 ) )
         
-        else:
-            for (device_idx, device_name, device_total_vram_gb) in self.get_devices_for_type(self.type, self.multi_gpu): 
-                num_processes = 1
-                if not self.manual and self.type == 'rects' and self.detector == 'mt':
-                    num_processes = int ( max (1, device_total_vram_gb / 2) )
-                    
-                for i in range(0, num_processes ):
-                    client_dict = base_dict.copy()
-                    client_dict['device_idx'] = device_idx
-                    client_dict['device_name'] = device_name if num_processes == 1 else '%s #%d' % (device_name,i)
-                    client_dict['device_type'] = 'GPU'
-                    
-                    yield client_dict['device_name'], {}, client_dict
+        for i in range(0, num_processes ):
+            client_dict = base_dict.copy()
+            client_dict['device_idx'] = 0
+            client_dict['device_name'] = 'CPU' if num_processes == 1 else 'CPU #%d' % (i),
+            client_dict['device_type'] = 'CPU'
+            
+            yield client_dict['device_name'], {}, client_dict
                     
     #override
     def get_no_process_started_message(self):