[Phpgroupware-developers] Problem while configuring phpgroupware

[Your Amit]

Hi,
After filling up the page for creating header.inc.php,i get the 
error which says
Warning:db_type()in defaults is not supported on this server.Using 
first supported type
I have a linux setup with php-4 and mysql.
I tried changing the ownership of the files as well.
I set it to nobody user and group.
And moreover,if i create header.inc.php file myself,it works 
fine,but takes me to www.domain.com/phpgroupware/login.php after i 
login as 'demo' with 'guest' password.
Can somebody tell me how to get out of this error and create 
header.inc.php file smoothly.
Thanx & regds,
Amit