Error - new presentation in Safari

[mobang]

In Documents - New - Presentation an error slides in saying:

Can't find variable: slimey

The presentation programm is not displayed, only the back, save and rename button.

In Firefox everything works fine.
I'm on MacOSX 10.5.7
Safari 3.2.3

Unfortunately nothing is written to log.php and no debug info is displayed.
It happens also on other mac user accounts.

Maybe there is someone out there who can verify this?

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I saw another problem that looked similar in http://forums.opengoo.org/index.php?topic=392.0 but was not able to transfer to this one.

Thanks Ralf