[TYPO3-install] Cannot login to BE after upgrade from 4.2 to 4.3.3

[Philipp Gampe]

Am 04.06.2010, 16:59 Uhr, schrieb Eduardo Trápani  
<eduardo at esperanto.org.uy>:

> Any ideas?  I know this question has already been asked, but the  
> proposed solutions have not fixed the problem for me.

I would try to disable all extensions first. Go to your  
typo3conf/localconf.php and modify the extension list to remove extensions  
(make backup first!)

Best regards
-- 
Philipp Gampe