ERROR System.Object [(null)] - UI Exception:

孤独天空

2012-11-04 02:54:52,359 [1] ERROR System.Object [(null)] - UI Exception:
System.Runtime.InteropServices.ExternalException: GDI+ 中发生一般性错误。
   在 System.Drawing.Graphics.Clear(Color color)
   在 csExWB.cEXWB.OnPaint(PaintEventArgs e)
   在 System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs)
   在 System.Windows.Forms.Control.WmPaint(Message& m)
   在 System.Windows.Forms.Control.WndProc(Message& m)
   在 csExWB.cEXWB.WndProc(Message& m)
   在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

这是什么错误