TYPO3 Core

I receive an Internal Server error after installing 4.2.8 or 4.3 alpha 3 in the backend wenn selecting TER Settings.
Happens also on a clean new install with default dbase,
Never happened on earlier releases (incl. 4.2.6)

1. DEBUG SYSTEM INFORMATION - START ###
   HTTP_HOST : olsthoorn.ch
   TYPO3_HOST_ONLY : olsthoorn.ch
   TYPO3_PORT :
   PATH_INFO :
   QUERY_STRING : TYPO3_INSTALL[type]=phpinfo
   REQUEST_URI : /1/typo3/install/index.php?TYPO3_INSTALL[type]=phpinfo
   HTTP_REFERER : http://olsthoorn.ch/1/typo3/install/index.php?TYPO3_INSTALL[type]=about
   TYPO3_REQUEST_HOST : http://olsthoorn.ch
   TYPO3_REQUEST_URL : http://olsthoorn.ch/1/typo3/install/index.php?TYPO3_INSTALL[type]=phpinfo
   TYPO3_REQUEST_SCRIPT: http://olsthoorn.ch/1/typo3/install/index.php
   TYPO3_REQUEST_DIR : http://olsthoorn.ch/1/typo3/install/
   TYPO3_SITE_URL : http://olsthoorn.ch/1/
   TYPO3_SITE_SCRIPT : typo3/install/index.php?TYPO3_INSTALL[type]=phpinfo
   TYPO3_SSL :
   TYPO3_REV_PROXY :
   SCRIPT_NAME : /1/typo3/install/index.php
   TYPO3_DOCUMENT_ROOT : /home/innosail/public_html
   SCRIPT_FILENAME : /home/innosail/public_html/1/typo3/install/index.php
   REMOTE_ADDR : 212.254.186.212
   REMOTE_HOST :
   HTTP_USER_AGENT : Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2
   HTTP_ACCEPT_LANGUAGE: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
   CONST: PHP_OS : Linux
   CONST: TYPO3_OS :
   CONST: PATH_thisScri: /home/innosail/public_html/1/typo3/install/index.php
   CONST: php_sapi_name: cgi
   OTHER: TYPO3_VERSION: 4.3.0alpha3
   OTHER: PHP_VERSION : 5.2.10
   imagecreatefromgif(): 1
   imagecreatefrompng(): 1
   imagecreatefromjpeg(: 1
   imagegif() : 1
   imagepng() : 1
   imagejpeg() : 1
   imagettftext() : 1
   OTHER: IMAGE_TYPES : 31
   OTHER: memory_limit : 32M
   SERVER: SERVER_PORT : 80
   SERVER: SERVER_SOFTW: Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.7a mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635
   SERVER: GATEWAY_INTE: CGI/1.1
   SERVER: SCRIPT_NAME : /1/typo3/install/index.php
   SERVER: PATH_TRANSLA:
   T3CV_GFX: image_proc: 1
   T3CV_GFX: gdlib : 1
   T3CV_GFX: gdlib_png : 0
   T3CV_GFX: gdlib_2 : 0
   T3CV_GFX: im : 1
   T3CV_GFX: im_path : /usr/X11R6/bin/
   T3CV_GFX: im_path_lz: /usr/bin/
   T3CV_GFX: im_version:
   T3CV_GFX: im_negate_: 0
   T3CV_GFX: im_imvMask: 0
   T3CV_GFX: im_combine: combine
2. DEBUG SYSTEM INFORMATION - END ###
   (issue imported from #M11683)