error: cannot find column exerID

[blondsecret]

Hello everyone,
after installing a Strokes 'easylearning' CD-Rom, following dialogue is shown to me:

Microsoft .NET Framework
An unhandled exception has occurred in a component in your application.
Cannot find column exerID.

Now I reallly dont know how to fix that and what that all does mean. Can anyone help me?

Thanks in advance.


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

************** Exception Text **************
System.IndexOutOfRangeException: Cannot find column exerID.
at System.Data.DataTable.ParseSortString(String sortString)
at System.Data.DataView.CheckSort(String sort)
at System.Data.DataView.set_Sort(String value)
at Exer40.Module1.fgrammar_exer()
at Exer40.mdlGlobals.openforms_continue()
at Exer40.mdlEvents.lblButton_click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Label.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: 1.1.4322.2443
CodeBase: file:///c:/windows/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
Exer40
Assembly Version: 1.0.2762.14071
Win32 Version: 1.0.2762.14071
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/Exer40.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__b77a5c5619
34e089/system.windows.forms.dll
----------------------------------------
System
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2443
CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.
dll
----------------------------------------
AxInterop.ShockwaveFlashObjects
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/AxInterop.Sho
ckwaveFlashObjects.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
----------------------------------------
Microsoft.VisualBasic
Assembly Version: 7.0.5000.0
Win32 Version: 7.10.6001.4
CodeBase: file:///c:/windows/assembly/gac/microsoft.visualbasic/7.0.5000.0__b03f5f7f1
1d50a3a/microsoft.visualbasic.dll
----------------------------------------
System.Data
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.2032
CodeBase: file:///c:/windows/assembly/gac/system.data/1.0.5000.0__b77a5c561934e089/sy
stem.data.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/sys
tem.xml.dll
----------------------------------------
Interop.Shell32
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/Interop.Shell
32.DLL
----------------------------------------
tur100d
Assembly Version: 0.0.0.0
Win32 Version: 0.0.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/tur100d.DLL
----------------------------------------
spict
Assembly Version: 0.0.0.0
Win32 Version: 0.0.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/spict.DLL
----------------------------------------
spict_tur
Assembly Version: 0.0.0.0
Win32 Version: 0.0.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/spict_tur.DLL

----------------------------------------
AxInterop.SHDocVw
Assembly Version: 1.1.0.0
Win32 Version: 1.1.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/AxInterop.SHD
ocVw.DLL
----------------------------------------
help_ger
Assembly Version: 0.0.0.0
Win32 Version: 0.0.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/help_ger.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
----------------------------------------
Interop.SHDocVw
Assembly Version: 1.1.0.0
Win32 Version: 1.1.0.0
CodeBase: file:///C:/Program%20Files/Strokes%204.0/T%FCrk%E7e%20100/bin/Interop.SHDoc
Vw.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.

[Plater]

That's an issue to take up with the Strokes 'easylearning' people.