no output for web template with 4.10 cgi

[Mario]

I have a mapfile that will only accept degrees for extents so between -180
and 180, but I need to have it working in meters.

I do this:
$map->setProjection("+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.999601 +x_0=400000
+y_0=-100000 +ellps=airy +units=m +no_defs", MS_TRUE);


but with no luck, any idea what I'm doing wrong?
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