diff -Naur ImageMagick-6.1.8.orig/coders/fpx.c ImageMagick-6.1.8/coders/fpx.c
--- ImageMagick-6.1.8.orig/coders/fpx.c	2005-01-19 01:11:40.339582104 +0100
+++ ImageMagick-6.1.8/coders/fpx.c	2005-01-19 01:11:55.056344816 +0100
@@ -975,7 +975,7 @@
     if (p == (const PixelPacket *) NULL)
       break;
     if (fpx_info.numberOfComponents == 1)
-      (void) ImportQuantumPixels(image,GrayQuantum,pixels);
+      (void) ImportQuantumPixels(image,GrayQuantum,0,pixels);
     else
       if (image->matte == MagickFalse)
         (void) ImportQuantumPixels(image,RGBQuantum,0,pixels);