License Activation

Hi

We just recently purchase SQL Prompt and when I go to activate the License we are getting the following exception, any ideas?

System.MethodAccessException: System.Xml.Xsl.Runtime.StringConcat.ConcatNoDelimiter(System.String)
at System.Xml.XmlEventCache.WriteString(String text)
at System.Xml.Xsl.Runtime.XmlQueryOutput.WriteString(String text, Boolean disableOutputEscaping)
at System.Xml.Xsl.Runtime.XmlQueryOutput.WriteString(String text)
at <xsl:template name="replace">(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, IList`1 text, String searchFor, IList`1 replaceWith)
at <xsl:template name="escape">(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, XPathNavigator text)
at <xsl:template match="xhtml:p|p">(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, XPathNavigator {urn:schemas-microsoft-com:xslt-debug}current, Double {urn:schemas-microsoft-com:xslt-debug}position, Double {urn:schemas-microsoft-com:xslt-debug}last)
at <xsl:apply-templates>(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, XPathNavigator , Double , Double )
at <xsl:template match="xhtml:html|html">(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, XPathNavigator {urn:schemas-microsoft-com:xslt-debug}current)
at <xsl:apply-templates>(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, XPathNavigator , Double , Double )
at Root(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
at Execute(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
at System.Xml.Xsl.XmlILCommand.Execute(Object defaultDocument, XmlResolver dataSources, XsltArgumentList argumentList, XmlSequenceWriter results)
at System.Xml.Xsl.XmlILCommand.Execute(Object defaultDocument, XmlResolver dataSources, XsltArgumentList argumentList, XmlWriter writer, Boolean closeWriter)
at System.Xml.Xsl.XmlILCommand.Execute(XmlReader contextDocument, XmlResolver dataSources, XsltArgumentList argumentList, TextWriter results)
at System.Xml.Xsl.XslCompiledTransform.Transform(XmlReader input, XsltArgumentList arguments, TextWriter results)
at t.a(String )
at s.a(String , T& )
at p..ctor(g wizfrmparampacket, a rmeh, Image imgIcon)
at e.PageHandlerConfigure()
at d.c()
at e.a()
at e..ctor(Licence licence, Icon icon)
at RedGate.Licensing.Client.Licence.a(Licence , ActivateFromXml , Object , Icon )
at RedGate.Licensing.Client.Licence.a(IWin32Window , ActivateFromXml , Object , Icon )
at RedGate.Licensing.Client.Licence.DisplayUI(IWin32Window wndOwner, Icon icon)
at RedGate.SQLPrompt.CommonUI.Utils.LicensingUtils.ChangeAddLicence(UIOptions uiOptions)
at RedGate.SQLPrompt.CommonUI.Commands.Menu.LicensingCommand.Execute()
at a.Execute()
at RedGate.SQLPrompt.CommonVS.Commands.VSCommandControler.EnvDTE.IDTCommandTarget.Exec(String CmdName, vsCommandExecOption ExecuteOption, Object& VariantIn, Object& VariantOut, Boolean& Handled)