hi all,

i am getting the below error when i try to open the worklist item - 

The following error prevented the Workflow InfoPath
Task to open:

The request failed with HTTP status 407:
Proxy Authentication Required ( The ISA Server requires authorization to fulfill
the request. Access to the Web Proxy filter is denied. ). at
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage
message, WebResponse response, Stream responseStream, Boolean asyncCall) at
System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName,
Objectc] parameters) at
SourceCode.SharePoint.WebServices.K2SPFormsServices.UploadTemporaryFormXml(String
listNameOrTitle, String folderUrl, String fileName, Bytet] oByte, Boolean
overWrite, String xmlMetadataFields) at
SourceCode.Workflow.RuntimeServices.OpenInfoPathTask.OpenFormsServerPage(String
infoPathFormData, String fileName, Boolean openAsWebPage) at
SourceCode.Workflow.RuntimeServices.OpenInfoPathTask.OpenSharePointLocation(WorklistItem
wli, String xmlFieldName, String libURL, Boolean deployBrowserEnabled, Boolean
openAsWebPage, String spSiteURL, Boolean isSingleInstance) at
SourceCode.Workflow.RuntimeServices.OpenInfoPathTask.Page_Load(Object sender,
EventArgs e) System.Objectc]
ReadResponse(System.Web.Services.Protocols.SoapClientMessage,
System.Net.WebResponse, System.IO.Stream, Boolean)

Please can someone provide me some pointers. thanks is advance.