I'm using 2008 :O and thanks for the help :DQuote:
Umm... delete all of those references and re-add them from the source. Makes no sense that would be happening.
What version of visual studio are you using?
The fact it can't locate "Systems.Numerics" strongly indicates there's something wrong with your C# install/version.
I will be installing this tommorow thanksQuote:
The reason you're having the default parameter error is because you're not using Visual Studio 2010 or another IDE that supports 4.0 .NET frameworks default parameters. You either have to remove those default parameters or start using Visual Studio 2010.
You can download Visual C# Express from [Only registered and activated users can see links. Click Here To Register...] and from there choose the Visual C# Express.