System.Diagnostics.Debug.WriteLine not working

I am looking for the equivalent of OutputDebugString that works for WPF in VS2010. 

I have tried System.Diagnostics.Debug.WriteLine and System.Trace.WriteLine and I even tried OutputDebugString

and nothing shows up in the output window for in this app while debugging.

I checked the compiler options they have Debug and Trace defined.

I tried Any CPU and x86. I am looking for performance issues and this is what I normally use.

Thanks..

Bob

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