I have never seen this before. My upload class has served over 25,000 uploads so far and this is a first. I have this code:

            Dim lcControl As String = ""
            Dim lcFileName As String = ""
            Dim lnFileSize As Integer = 0
            Dim loFileUpload As System.Web.UI.WebControls.FileUpload = New System.Web.UI.WebControls.FileUpload
            Dim loHttpPostedFile As System.Web.HttpPostedFile = Nothing

                ' Get a reference to the control
                loFileUpload = oProcess.oPage.FindControl(lcControl + "$FileUpload")

                ' If the file was uploaded
                If Not loFileUpload Is Nothing Then

                    ' Get a reference to the posted file
                    loHttpPostedFile = loFileUpload.PostedFile

                    ' See if the file was submitted
                    If Not loHttpPostedFile Is Nothing Then

                        ' Get the file size
                        lnFileSize = loHttpPostedFile.ContentLength

                        ' If the file was submitted
                        If lnFileSize > 0 Then

                            ' Get the file name
                            lcFileName = loHttpPostedFile.FileName

lcFileName usually gives the file name. But, in a particular case, I end up with something like this:

"C:\Users\UserHere\Desktop\data file - drp - english - on.pdf"

What is causing this?