Error converting 0 to double on user's machine with Silverlight

Error converting 0 to double on user's machine with Silverlight

I have a Silverlight application that gets down data from the server in the form of an XML string, opens it as a document, and parses through things.

This works on all other machines, but we have client with a user who's machine is unable to run things properly. Her box gives her an InvalidCastException that looks like it's trying to convert 0 to a Double.

This seems like an environmental issue, but I can't figure out what the cause of this would be or how to fix it. Her cultural settings appeared okay, at least for the numeric settings.

Anyone bumped into anything similar or have any next steps for diagnosis or possible fixes? I don't think we can attach to the machine or anything.

Relevant stack trace included below:

  [InvalidCast_FromStringTo]  Arguments: 0,Double  Debugging resource strings are unavailable. Often the key and arguments  provide sufficient information to diagnose the problem. See  http://go.microsoft.com/fwlink/?linkid=106663&Version=5.1.10411.0&File=Microsoft.VisualBasic.dll&Key=InvalidCast_FromStringTo   Type: System.InvalidCastException  at  Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String  Value, NumberFormatInfo NumberFormat)  at MyNamespace.MyLoader.LoadXml(String xml) 

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