Hi folks

I have a 64-bit vista ultimate PC with all SP's applied.

I have been attemting to upgrade the existing instance of SQL Server Expr to SP2, but it stops installing with an error dialog box saying:

SQL BPA command line has stopped working

Eventually I end up on a web page containing the following info:

Details
Product: SQL Server
ID: SQLSetup90
Source: setup.rll
Version: 9.00.1291.00
Component: SQL Server Setup
Message: To continue you must provide a strong sa password.

Explanation
You selected Mixed Mode authentication, but did not provide a strong password.

When I open up Management Studio Expr and examine Server Properties for the existing instance, it shows "Windows Authentication". Within the installation wizard I definitely have chosen "Windows Authentication".

So, currently I am somewhat mystified.

If somebody could give me a hand with this it would be wonderful.

Kind regards

Ross