Can you run gdalinfo from the FWTools utility package on that image and report 
back what it says?

Jason

-----Original Message-----
From: Yuriko
Sent: March-27-09 11:25 AM
To: [email protected]
Subject: [mapguide-users] 8-bit Raster displaying as 1-bit Bitonal image

I have an 8-bit tiff that is recognized as a bitonal image in Mapguide.  It 
displays correctly in ArcMap as a raster with 10 values, but in MG it's only 
black or white.  Any ideas as to what the issue is?
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