[Gdal-dev] MrSID display problem

[Yar]

I'm running Mapserver 4.0 on Windows XP
I downloaded GDAL 1.2.5 (windows) and DSDK 4.0.10.720 (windows), nmake.opt 
seemed to be correctly configured, I did a build and install. Next, in my map 
file I defined a a layer:

LAYER
NAME "14_1_1.sid"
data "mrsid/14_1_1.sid"
status default
type raster
#processing "bands=1, 2, 3"
END

Next, when I open my map in the browser I get a blank screen. When I go to
View->Source in my IE6, I see the following error:

_________________________________________________________


<b>Warning</b>:  [MapServer Error]: msDrawMap(): Failed to draw layer
named '14_1_1.sid'.
in <b>C:\ITS\Apache2\htdocs\statewide\index.php</b> on line <b>259</b><br />
<br />
<b>Warning</b>:  [MapServer Error]: msDrawRaster(): Unrecognized or
unsupported image format
in <b>C:\ITS\Apache2\htdocs\statewide\index.php</b> on line <b>259</b><br />
<br />
<b>Warning</b>:  [MapServer Error]: drawEPP(): EPPL7 support is not available.
in <b>C:\ITS\Apache2\htdocs\statewide\index.php</b> on line <b>259</b><br />
<br />
<b>Fatal error</b>:  Object expected as argument. in
<b>C:\ITS\Apache2\htdocs\statewide\index.php</b> on line <b>280</b><br

________________________________________________________________

Is it because my layer is not defined correctly, or because Mapserver
needs to be configured with GDAL? (I haven't done any modifications to 
Mapserver after I installed GDAL with DSDK)