Adding too much text to a windows forms tool tip in VS 2013 Express creates an exception at run time

Hi,
As the title states, when I add a certain amount of text to a tooltip in the forms designer in VS 2013 Express, I get the following excecption:

An unhandled exception of type 'System.Resources.MissingManifestResourceException' occurred in mscorlib.dll

Additional information: Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "ModExplorerForNMM.ModExplorerForNMMForm.resources" was correctly embedded or linked into assembly "ModExplorerForNMM" at compile time, or that all the satellite assemblies required are loadable and fully signed.

The code for the working tooltips that I created looks like this:

this->toolTip1->SetToolTip(this->dataFilesTypeComboBox, 
L"Quick select for check boxes below")

The code which exceptions and also breaks form designer looks like this:

this->toolTip1->SetToolTip(this->includeUninstalledDataCheckBox,
resources->GetString(L"includeUninstalledDataCheckBox.ToolTip"));

So I assume that if too many characters are added, then instead of a string, the code created tries to retrieve the string from a resource?   Does this not get set up automatically for me?   I'm new to VS in general and don't know anything about resources.   IS this a limitation of the express version?   Any way to fix it?

Thanks