Can't start SQL Server after renaming the server

I can't start SQL Server after my Windows 2003 server has been renamed.
Do I have to reinstall SQL in order to rename it?
Thank you for your help!
LeonWhat version of SQL Server? Anything in the SQL Server errorlog file? Here you might find something
useful: http://www.karaszi.com/SQLServer/info_change_server_name.asp
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
Blog: http://solidqualitylearning.com/blogs/tibor/
"Leon Shargorodsky" <LeonShargorodsky@.discussions.microsoft.com> wrote in message
news:4E806193-B9A6-4659-BE21-C9EB2B57B49E@.microsoft.com...
>I can't start SQL Server after my Windows 2003 server has been renamed.
> Do I have to reinstall SQL in order to rename it?
> Thank you for your help!
> Leon