another update to install instructions

INSTALL.txt

@@ -325,7 +325,7 @@ like this:
      > /soft/bin/isis
 
      Welcome to ISIS Version 1.5.0
-     Copyright (C) 1998-2011 Massachusetts Institute of Technology
+     Copyright (C) 1998-2010 Massachusetts Institute of Technology
 
      isis>
 .................................................................
@@ -583,6 +583,15 @@ binaries for i386, you may need to use
      LDFLAGS="-m32"
 .............................................
 
+- Missing libraries
++
+If your X11 libraries and include files are installed in a
+non-standard location, you may need to provide the location:
+
+.................................................................
+   --x-libraries=/usr/X11/lib  --x-includes=/usr/X11/include
+.................................................................
+
 - Dynamic Linking
 +
 Dynamic linking to shared libraries behaves differently on
@@ -595,28 +604,6 @@ directories that will be examined by the compiler when it
 runs. For example, problems may arise if
 '/usr/lib/libslang.dylib' and '/usr/local/lib/libslang.dylib'
 both exist, but represent different library versions.
-+
-It may also be necessary to set +DYLD_LIBRARY_PATH+ to
-provide paths to all the shared libraries needed at run-time.
-
-- Missing libraries
-+
-If your X11 libraries and include files are installed in a
-non-standard location, you may need to provide the location:
-
-.................................................................
-   --x-libraries=/usr/X11/lib  --x-includes=/usr/X11/include
-.................................................................
-
-To find the png library, you might need to edit +EXTRA_LIB+ in
-'src/Makefile' to add
-
-.................................................................
-   -framework Foundation -framework AppKit -lpng
-.................................................................
-
-After you're finished editing 'src/Makefile', build and install
-isis as usual.
 
 [[Xsolaris]]
 Solaris systems: