[phpGroupWare-users] Installation Problems

[uwe]

Hello!
I have a big problem!
I am testing phpgroupware. But suddenly I had a problem.
I made the header.inc.php and then wanted to make configutation settings. At 
Step two I got an error and I do not know something about this.
Fatal error: Cannot redeclare class datetime in  
C:\Programme\xampp\htdocs\phpgroupware\phpgroupware\phpgwapi\inc\class 
.datetime.inc.php on line 34
Please help me and tell what went wrong?
Thanks a lot UweSent from the phpGroupWare forums @ 
http://forums.phpGroupWare.org