[TYPO3-seminars] IE8 problem with registering

[Sacha Storz]

Hi all,

I have a problem: Registering for an event works fine for me (Firefox), 
but people with IE8 cannot register. OneTimeAccounts *are* being 
generated (I can see them in the according sysfolder), but no 
corresponding attendances exist, no mails, no nothing. The browser tells 
the visitor that he/she is not logged in, that's it. The problem does 
*not* occur in IE6 (could not test IE7 yet).

Any hint or URL that could help me? Thank you very much.

I use:
TYPO3 4.3.0
onetimeaccount 0.6.1
seminars 0.8.3
ameos_formidable 1.1.2
oelib 0.6.3 (special build by Oliver Klee, posted on this list on 19.1.2010)
realurl 1.7.0 with config:
      'postVarSets'   => array(
         '_DEFAULT' => array(
                 'kursdetail' => array(
                         array(
                                 'GETvar' => 'tx_seminars_pi1[showUid]',
                                 'lookUpTable' => array(
                                         'table' => 'tx_seminars_seminars',
                                         'id_field' => 'uid',
                                         'alias_field' => 'title',
                                         'addWhereClause' => ' AND NOT 
deleted',
                                         'useUniqueCache' => 1,
                                         'useUniqueCache_conf' => array(
                                                 'strtolower' => 1,
                                                 'spaceCharacter' => '-',



thanks and cheers
sacha