Linux: "Self 1" X I/O Error .. aborting process.

[erikterpstra]

On Ubuntu Linux 8.10 I get the following error:

./Self -s Empty.snap 

	Welcome to the Self system!  (Version 4.1.5)


Copyright 1992-2002 Sun Microsystems, Inc. and Stanford University.
See the LICENSE file for license information.

Type _Credits for full credits.

VM version: 4.1.10

"Self 1" X I/O Error .. aborting process.
======

Any idea what might have gone wrong here?

TIA,

Erik.