Can't launch XCDRoast

[Harry G]

No, I am doing it after xhost + and then su'ing the terminal, I try and 
get this:

** WARNING **: Installation problem? No set-gid bit on 
/usr/X11R6/lib/xcdroast-0.98/bin/xcdrwrap


** WARNING **: The X-CD-Roast wrapper seems not to have the correct
         permissions set

** WARNING **: So do as root something like that: (and read the Manual)
         chown root:cdwrite /usr/X11R6/lib/xcdroast-0.98/bin/xcdrwrap;
         chmod 2755 /usr/X11R6/lib/xcdroast-0.98/bin/xcdrwrap

*** NOTE ***:
        ---------------------------------------------------------------
        This permission warning and the following set-uid bit warnings
        can be safely ignored, if you want to run X-CD-Roast as root 
only.
        ---------------------------------------------------------------

** WARNING **: Installation problem? No set-uid bit on 
/usr/X11R6/lib/xcdroast-0.98/bin/cdrecord


** WARNING **: Installation problem? No set-uid bit on 
/usr/X11R6/lib/xcdroast-0.98/bin/mkisofs


** WARNING **: Installation problem? No set-uid bit on 
/usr/X11R6/lib/xcdroast-0.98/bin/readcd


** WARNING **: Installation problem? No set-uid bit on 
/usr/X11R6/lib/xcdroast-0.98/bin/cdda2wav

xcdroast: error while loading shared libraries: 
/usr/lib/libimlib-gif.so: undefined symbol: _gdk_malloc_image


Then I do the following:

linux:/home/harrycg # chown root:cdwrite 
/usr/X11R6/lib/xcdroast-0.98/bin/xcdrwrap:
chown: `root:cdwrite': invalid group

I be confused, and besides, it makes my brain hurt!  

So what does it tell me, besides the root:cdwrite group is invalid?  Do 
I need to use a different group?  (By the way, this is in Suse 7.3)

Harry G