Index: Source/OpenTK/DisplayDevice.cs
===================================================================
--- Source/OpenTK/DisplayDevice.cs	(revision 2469)
+++ Source/OpenTK/DisplayDevice.cs	(working copy)
@@ -70,6 +70,7 @@
             this.current_resolution = currentResolution;
             IsPrimary = primary;
             this.available_resolutions.AddRange(availableResolutions);
+            this.bounds = bounds == Rectangle.Empty ? currentResolution.Bounds : bounds;
 
             Debug.Print("DisplayDevice {0} ({1}) supports {2} resolutions.",
                 available_displays.Count, primary ? "primary" : "secondary", available_resolutions.Count);