Failed to connect to database

Hello, I have been having trouble connecting to my Xaraya site (I'm running,
MySql, PHP 4.3.x and IIS) since this morning ... I keep getting the
following error when I try to visit http://localhost/Xaraya/html/index.php:



A fatal error occurred while serving your request.

We are sorry for this inconvenience.

If this is the first time you see this message, you can try to access the
site directly through index.php
If you see this message every time you tried to access to this service, it
is probable that our server is experiencing heavy problems, for this reason
we ask you to retry in some hours.
If you see this message for days, we ask you to report the unavailablity of
service to our webmaster. Thanks.




Technical information

Xaraya has failed to serve the request, and the failure could not be
handled.

This is a bad sign and probably means that Xaraya is not configured
properly.

The failure reason is: xarDB_init: Failed to connect to
mysql://asadikhan@localhost/Xaraya, error message: Unknown database 'xaraya'



Any idea what this means, and how I can get rid of this? Please help.
Thanks.

Asad