phpmyadmin+sessions@win32 known to destroy system ???

I´ve been playing around with php sessions on my win32 maschine, before I´ve used them on Linux maschines only. The result is know that I´m having an error I´m unable to fix. PHPMyAdmin can´t find any table and won´t execute SQL commands properly and PHP itselft does not work either properly. It´s very strange, both PHP and phpmyadmin seem to be able to perform 1 (maybe 2-3 more queries) before mysql terminates the connection with "Unknown error", phpmyadmin displays all tables and dbs at the left side, clicking on them reveals "no DB selected", but I did. PHP itself performs 1 query and stops then. I´ve reinstalled mysql+Apache+php, went through all config files. Nothing. The error remains. I´ve deleted all cookies and session data and temporary data and I´ve tried everything (except reinstalling win2000). I really can´t figure out how to eliminate and which program causes the error and I fear nobody can help me with this. But I´m sure that this error appeared right after I´ve called session_start() the first time. regards -- o----------0-¬---------O-·---¬----o---®-----o o O ° . | http://www.kiffen.de | pRoteçt y0ur bRaín |0 O ° ¤ ° · 0°·³°²'²³-¹'³´³°^°³~³²³°'³²²¨³²^³¹³²°²³`³º³°Þ ° o © ° . · | psychedelic experience | gott@kiffen.de | O ° o ° o-¬--o--0-----©-·--O-----o-----0-¤----------o 0 ° · ° . ¤ ·