Sql 2005 SP1 (x86) Upgrade Failed....

Installed sql 2005 sp1 on standalone Win 2003 Server box in workgroup. (sql 2000 is default instance, sql 2005 is named instance and sql 2005 Express is floating around somewhere).). Box does not have any prior CTP SP1 versions.

When I reach the "Authentication Mode" dialog during the SP1 install, and click Next, I get


"Your account information could not be verified for one or more instances. Ensure that you can connect to all the selected instances using the account information provided.."


I reset and restarted the sql 2005 database and reporting services using both a local account an the €œsa€? account. In both cases I received the above error message.

What am I missing here?


TIA,

Barking mad!


P.S. Sql9 log is as follows:

04/20/2006 21:18:23.265 ================================================================================
04/20/2006 21:18:23.265 Hotfix package launched
04/20/2006 21:18:24.890 Product discovery successfully completed during the install process for SQL2005
04/20/2006 21:18:24.890 SP Level check successfully completed during the install process for SQL2005
04/20/2006 21:18:24.890 Product language check successfully completed during the install process for SQL2005
04/20/2006 21:18:24.890 Product version check successfully completed during the install process for SQL2005
04/20/2006 21:18:25.218 Product discovery successfully completed during the install process for SQLEXPRESS
04/20/2006 21:18:25.234 SP Level check successfully completed during the install process for SQLEXPRESS
04/20/2006 21:18:25.234 Product language check successfully completed during the install process for SQLEXPRESS
04/20/2006 21:18:25.234 Product version check successfully completed during the install process for SQLEXPRESS
04/20/2006 21:18:25.234 Command-line instance name check completed during the install process
04/20/2006 21:18:25.234 Baseline build check completed during the install process