LatLong changing to scientific notation

[Mevima Winn]

I have a C#.NET app, and a grid layer with a label to show the lat/long on
my map.  When I build my app and load it for the first time, it shows
correctly.  However, when I zoom in, everything  below -90lat turns into
scientific notation (-1e+002, -1.1e+002, etc. instead of -100, -110), and
when I zoom back out or even reload the page, the notation stays; I don't
get the proper lat/long back until I rebuild.  Any idea what might be
causing this?  Google doesn't seem to help, and I'm pretty new to the  whole
MapServer deal, so I might be missing something simple.

The relevant part from the map file:

MAP
	NAME		"Zone Samples"
	SHAPEPATH	"C:\training\mapServerTutorial\data"
	SIZE		600 400
	STATUS	ON
	IMAGETYPE	PNG
	IMAGECOLOR	255 255 240
	EXTENT	-180 40 -60 60
	UNITS		METERS
	FONTSET	"fonts\fonts.list"

	LAYER
		NAME "grid"
		METADATA
			"DESCRIPTION" "Grid"
		END
		TYPE LINE
		STATUS ON
		CLASS
			NAME "Graticule"
			COLOR 150 150 150
			LABEL
				COLOR 	255 0 0
				FONT 		arial
				TYPE		truetype
				SIZE 		8
			END
		END
		PROJECTION
			#"init=epsg:4326"
			"proj=latlong"
			"ellps=WGS84"
			"datum=WGS84"
		END
		GRID
			LABELFORMAT DDMM
			MAXARCS 10
			MAXINTERVAL 10
			MAXSUBDIVIDE 2
		END
	END
END


Thanks,
____________
Mevima Winn
Wireless Applications Corp.
*paulanne.winn at wacorp.net*