Adding layer file - Automation Error, Invalid Pointer, VBA code help

[chris.blinn799]

I've wrote code to add 4 files into ArcMap. The first 3 add featureclasses and work perfect, but this layer will not add due to a Automation Error, Invalid Pointer, which pops up when I run the code. The debug takes me to the line with the comment depicting the error. I do not know how to fix this, any suggestions?!

THANKS and BEST,
Chris

Private Sub AddLayerFile()


    Dim pMxDoc As IMxDocument
    Dim pMap As IMap
    Dim pGxLayer As IGxLayer
    Dim pGxFile As IGxFile

    'Get the layer file
    Set pGxLayer = New GxLayer
    Set pGxFile = pGxLayer
    pGxFile.Path = "E:\GEOG423\Projects\Group\Data\Small Street Names.dwg"

    'Add the layer to the map
    Set pMxDoc = ThisDocument
    Set pMap = pMxDoc.FocusMap
    pMap.AddLayer pGxLayer.Layer
    pMxDoc.ActiveView.Refresh
End Sub