Hi, I have following installed....FSX (with acceleration pack)REXPMDG NGXAvilasoft EFBUT2I have......... Alienware Aurora R3i7-2600k (4.1OC) with NV GTX 590 with DELL 3011 monitor (native resolution)Windows 7 64bitMy flight freezes in 15 minutes after departing (usually just when reaching cruise)Never had any crashes or freezes before. Now all of sudden they are unavoidable. only thing added was EFB in last 2 weeks.below is the error details..............See the end of this message for details on invokingjust-in-time (JIT) debugging instead of this dialog box.************** Exception Text **************System.Runtime.InteropServices.COMException (0xC000014B): Exception from HRESULT: 0xC000014B at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.FlightSimulator.SimConnect.SimConnect.ReceiveDispatch(SignalProcDelegate pfcnSignal) at Microsoft.FlightSimulator.SimConnect.SimConnect.ReceiveMessage() at rexwxengine2.controls.ucLoadAircraftLocation.DefWndProc(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ContainerControl.WndProc(Message& m) at System.Windows.Forms.UserControl.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)************** Loaded Assemblies **************mscorlib Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5448 (Win7SP1GDR.050727-5400) CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll----------------------------------------rexwxengine2 Assembly Version: 2.3.2010.38532 Win32 Version: 2.3.2010.1027 CodeBase: file:///J:/REX/rexwxengine2.exe----------------------------------------System.Windows.Forms Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5446 (Win7SP1GDR.050727-5400) CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll----------------------------------------System Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5447 (Win7SP1GDR.050727-5400) CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll----------------------------------------System.Drawing Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400) CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll----------------------------------------Microsoft.FlightSimulator.SimConnect Assembly Version: 10.0.61259.0 Win32 Version: 10.0.61637.0 (FSX-Xpack.20070926-1421) CodeBase: file:///C:/Windows/assembly/GAC_32/Microsoft.FlightSimulator.SimConnect/10.0.61259.0__31bf3856ad364e35/Microsoft.FlightSimulator.SimConnect.dll----------------------------------------msvcm80 Assembly Version: 8.0.50727.6195 Win32 Version: 8.00.50727.6195 CodeBase: file:///C:/Windows/WinSxS/x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.6195_none_d09154e044272b9a/msvcm80.dll----------------------------------------System.Configuration Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400) CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll----------------------------------------System.Xml Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400) CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll----------------------------------------System.Data Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400) CodeBase: file:///C:/Windows/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll----------------------------------------************** JIT Debugging **************To enable just-in-time (JIT) debugging, the .config file for thisapplication or computer (machine.config) must have thejitDebugging value set in the system.windows.forms section.The application must also be compiled with debuggingenabled.For example:<configuration> <system.windows.forms jitDebugging="true" /></configuration>When JIT debugging is enabled, any unhandled exceptionwill be sent to the JIT debugger registered on the computerrather than be handled by this dialog box.Any help is greatly appreciated....Raj