Well, their Technical Support is nicely working. The answer (I hope it helps anybody):

*Dear Sr. de los Rios,

Part of this may stem from running the English version of Poser on a Spanish operating system; the directory paths for a Spanish OS won't include the same folder names as Poser expects to find. That being said, you may be able to clear up at least some of this problem by deleting your Poser preference files; when Poser has been running successfully for a while, but then starts behaving badly, often it's because the preference files have become corrupted.

This is especially likely if Poser has crashed or been forced to quit, as then the preference files aren't closed properly. Corrupt preferences can lead to all kinds of misbehavior on Poser's part including frequent crashes. This is annoying but easily fixed- in short, you navigate into the prefs folder inside the Poser Runtime and delete the preference files found within; the process is described and illustrated in our Knowledge Base, here:

http://www.e-frontier.com/article/articleview/1761/1/595/

You should also be sure that you have updated Poser 6 to its most recent version (6.0.2.118) by downloading and running our SR2 updater (available from www.e-frontier.com/go/downloads/updates as a free download for registered Poser owners.)

If this doesn't fix the problem, please get back in touch and we'll see what else we can do.

I hope this helps!*

Me too :)

CASETTE
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"Poser isn't a SOFTWARE... it's a RELIGION!"