can not access sql server after changing the access right for sa to "denied"

From: Steve (anonymous_at_discussions.microsoft.com)
Date: 12/26/03


Date: Fri, 26 Dec 2003 09:42:14 -0800

I can not access my SQL server, I have a password for
standart user but I get a message that connection failed.
the problem started when I "played" with "sa", I changed
the security for sa to "Denied" What can I do?