Hello
I'm trying to run xearth or xplanet but something is wrong.

About xearth, if running from console (as user), nothing happens, the prompt does not come back so I musy press Ctrl-C. If I run it from console (as root) I receive the following error:
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Xlib: connection to ":0.0" refused by server
Xlib: Invalid XDM-AUTHORIZATION-1 key (failed key comparison)
Error: Can't open display: :0.0
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About xplanet, if I run it from console (as user) I receive this error:
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Sorry, this program was not compiled with JPEG support
Can't read day image file earth.jpg.

Map files may be obtained from the sources listed at
http://xplanet.sourceforge.net.

By default, xplanet will look for maps in the following order:
the current directory
the images subdirectory
/usr/share/xplanet/images

Use the -mapdir option to specify an alternate directory.
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and this is the erroe if running as root:
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Xlib: connection to ":0.0" refused by server
Xlib: Invalid XDM-AUTHORIZATION-1 key (failed key comparison)
Unknown display type.
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Can anyone help me please?
I'm running Suse Linux 8.1 ("default" kde 3.0.3).

Thanks in advance.