stexec[3971] Could not find bundle with name 'Foundation'

Hi everyone!

I've installed the StepTalk 0.10.0 over Slackware 12.1 successfully, but 
it just doesn't run.

When I try to do it, the message is:

    $ stexec
    2008-11-11 10:44:06.166 stexec[3971] Unknown time zone name `BRT'.
    2008-11-11 10:44:06.166 stexec[3971] Using time zone with absolute
    offset 0.
    2008-11-11 10:44:06.166 stexec[3971] Could not find bundle with name
    'Foundation'
    stexec: Uncaught exception STBundleException, reason: Nil bundle
    specified
    Aborted


The Foundation.stenv is at 
/usr/GNUstep/System/Library/Frameworks/StepTalk.framework/Resources/Environments/.

The GNUstep core is:

    gnustep-startup 0.20.1
    gnustep-make 2.0.6
    gnustep-base 1.16.3
    gnustep-gui 0.14.0
    gnustep-back 0.14.0


All of other GNUstep applications work well.

Any hint?

Regards,
Cacilhas, La Batalema