SLD pointsymbolizer externalgraphic trouble

[Pagurek,Debbie [NCR]]

I am having trouble with an SLD that should put an externalgraphic at a point.
I am getting a blank map and when I do a view source I am seeing Gobbldygook:
GIF87aXÿ
€ ...etc (this happens if I set imagetype GIF or PNG), and also if I don't set IMAGETYPE at all.
An SLD that uses an external graphic for a polygon layer works fine.

I am including the sld file and my mapfile as attachments, and the following is the URL I'm using.

http://localhost/cgi-bin/mapserv.exe?map=c:\ms4w\apps\chameleon-2.2\cesi\map\pix.map&version=1.1.1&service=wms&request=getmap&layers=popplace&sld=http://localhost/chameleon/cesi/sldtest.xml

I'm on Windows.
MapServer version 4.6.0 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE DEBUG=MSDEBUG

Anybody have any ideas? Is this a bug?

D. Pagurek
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