Winres error opening simple form

I want to use winres to edit a windows form application for internationalization. I made a simple test form containing just a button and I set "Localizable" to true (VS 2010/.Net 4). When I try to open the Form1.resx with winres, I get the error below. I must have some incorrect setting to have such a major problem with a trivial form?

Error - Failed to load the resource due to the following error:
System.ArgumentException: ResX file Type System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a in the data at line 121, position 4 cannot be located. Line 123, position 5. cannot be parsed. ---> System.Xml.XmlException: Type System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a in the data at line 121, position 4 cannot be located. Line 123, position 5. ---> System.TypeLoadException: Type System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a in the data at line 121, position 4 cannot be located. ---> System.Xml.XmlException: Type System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a in the data at line 121, position 4 cannot be located. Line 121, position 4.

No Net 4.0 ?

Quote:

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Originally Posted by dglienna

No Net 4.0 ?

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Yes, I am using Net 4.0. There are numerous other lines in the resx file containing "Version=4.0.0.0" which seem to be ok.