database connection error

why do i keep getting this message? it happens almost every night close to 8.00pm IST
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Warning: mysql_connect(): Too many connections in /home/vhosts/rohit.bizhat.com/forums/db/mysql4.php on line 48

Warning: mysql_error(): supplied argument is not a valid MySQL-Link resource in /home/vhosts/rohit.bizhat.com/forums/db/mysql4.php on line 330

Warning: mysql_errno(): supplied argument is not a valid MySQL-Link resource in /home/vhosts/rohit.bizhat.com/forums/db/mysql4.php on line 331
phpBB : Critical Error

Could not connect to the database
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help needed, as usual...:D

Restart the mySQL server process - that should "flush" the connections. However, that only cures the symptom. I'm guessing you have a script or something that doesn't close the connection the my mysql server after query results are returned.

thanks petard..though i dont think i have ne other scripts excepting wat came wid da default phpbb package...