TYPO3 Core

We use Typo3 4.0 on IIS on Server 2003 with mysql-essential-5.0.19 and php-5.1.2 and have the same error message:
Fatal error: Cannot use string offset as an array in C:\Inetpub\wwwroot\typo3_src-4.0\typo3\mod\tools\em\class.em_index.php on line 1204

I have the same error message, but in relation to class.t3lib_flexformtools.php.

I'm using TYPO3 4.0 final with TemplaVoila 0.6.1. When I'm inserting a new content element on a page chosing e.g. text w/image in the content element wizard (or any other element type) i get this error message:

Fatal error: Cannot use string offset as an array in /home/mydomain.com/ftp/www/typo3_src-4.0/t3lib/class.t3lib_flexformtools.php on line 145

The same thing happens when a content element is deleted and upon entering the "page properties" of standard page in the page tree. Strangely enough the page properties can be entered when the page is of type "not in menu".

Under TYPO3 4.0 beta2 everything was o.k.

PHP Version 5.1.2
MySQL 4.1.18

Nothing new on that ?

That's a very critical feature => I can't use Typo3 4.0 on my server because of this (because I can't impose to my customers tu use an English interface !)

Please have a look at bug #16220 and the patch attached there. Further discussion should be done there. Thanks.