Every time I start the game Medieval II: total war, which i recently installed I get this error:

An unhanded exception has occured in your application. If you click Continue, the application will ignore this error and attemp to continue. If yo click quit, the application will be shut own immidiately.

Input string was not in a correct format.

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.FormatException: Input string was not in a correct format.
at System.Number.ParseDouble(String s, NumberStyles style, NumberFormatInfo info)
at System.Double.Parse(String s, NumberStyles style, IFormatProvider provider)
at System.Convert.ToDouble(String value, IFormatProvider provider)
at System.String.System.IConvertible.ToDouble(IFormat Provider provider)
at System.Convert.ToDouble(Object value)
at UpdateLib.UpdateCore.Init(String updateDbPath, String versionDbPath, Boolean isUpdater)
at Launcher.LauncherMainForm.LauncherMainForm_Load(Ob ject sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Mes sage& m)
at System.Windows.Forms.ContainerControl.WndProc(Mess age& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage (Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(M essage& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2407
CodeBase: file:///c:/windows/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
Launcher
Assembly Version: 1.0.2669.20298
Win32 Version: 1.0.2669.20298
CodeBase: file:///C:/Programfiler/SEGA/Medieval%20II%20Total%20War/Launcher.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2032
CodeBase: file:///c:/windows/assembly/gac/system.windows.forms/1.0.5000.0__b77a5c561934e089/system.windows.forms.dll
----------------------------------------
System
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2407
CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
CoreLib
Assembly Version: 1.0.2669.20298
Win32 Version: 1.0.2669.20298
CodeBase: file:///C:/Programfiler/SEGA/Medieval%20II%20Total%20War/CoreLib.DLL
----------------------------------------
System.Drawing
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2032
CodeBase: file:///c:/windows/assembly/gac/system.drawing/1.0.5000.0__b03f5f7f11d50a3a/system.drawing.dll
----------------------------------------
SkinLib
Assembly Version: 1.0.2669.20298
Win32 Version: 1.0.2669.20298
CodeBase: file:///C:/Programfiler/SEGA/Medieval%20II%20Total%20War/SkinLib.DLL
----------------------------------------
AxInterop.SHDocVw
Assembly Version: 1.1.0.0
Win32 Version: 1.1.0.0
CodeBase: file:///C:/Programfiler/SEGA/Medieval%20II%20Total%20War/AxInterop.SHDocVw.DLL
----------------------------------------
Interop.SHDocVw
Assembly Version: 1.1.0.0
Win32 Version: 1.1.0.0
CodeBase: file:///C:/Programfiler/SEGA/Medieval%20II%20Total%20War/Interop.SHDocVw.DLL
----------------------------------------
Accessibility
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/assembly/gac/accessibility/1.0.5000.0__b03f5f7f11d50a3a/accessibility.dll
----------------------------------------
UpdateLib
Assembly Version: 1.0.2669.20298
Win32 Version: 1.0.2669.20298
CodeBase: file:///C:/Programfiler/SEGA/Medieval%20II%20Total%20War/UpdateLib.DLL
----------------------------------------
System.Xml
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2032
CodeBase: file:///c:/windows/assembly/gac/system.xml/1.0.5000.0__b77a5c561934e089/system.xml.dll
----------------------------------------
Microsoft.DirectX.AudioVideoPlayback
Assembly Version: 1.0.2902.0
Win32 Version: 5.04.00.2904
CodeBase: file:///c:/windows/assembly/gac/microsoft.directx.audiovideoplayback/1.0.2902.0__31bf3856ad364e35/microsoft.directx.audiovideoplayback.dll
----------------------------------------
Microsoft.DirectX
Assembly Version: 1.0.2902.0
Win32 Version: 5.04.00.2904
CodeBase: file:///c:/windows/assembly/gac/microsoft.directx/1.0.2902.0__31bf3856ad364e35/microsoft.directx.dll
----------------------------------------

************** JIT Debugging **************
To enable just in time (JIT) debugging, the config file for this
application or machine (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the machine
rather than being handled by this dialog.



This error makes the game freeze at the same point every time I try to play it, and I would be really glad if someone now how to fix this error.
Thanks in advance.

Welcome to PC Help Forum

I'm gonna bet it's a graphics card issue. What graphics card are you currently running?