Error - CRM Setup could not validate SQL Server

I am trying to do a reinstall of CRM 1.2 onto an SBS2k3 box.

In the uninstall of CRM I left the databases intact as I will be
reconnecting the new CRM 1.2 installation to the existing data.

When I try the install, I get an error saying :

Microsoft CRM Setup could not validate this instance of SQL Server

at the "Select SQL Server" screen. I have selected the SQL server from
the list (which is local to the machine) and have "Connect to existing
databases" (though I get the same error if I select "create new
databases").

I saw the previous thread about SQL requiring a reinstall if you have
changed domain functional level, however, I wouldn't think that this
would apply here, as this was not necessasry - CRM / SQL had been
working before this on the machine.

any help would be great, thanks

sadams123
Thu Sep 30 22:27:36 CDT 2004

got past this error by granting system admin role and public access to
databases to the Domain\MachineName$ account

now setup just fails after you press the "Install" button saying it
cannot grant access to the databases

"Setup was unable to install Microsoft CRM Server. Setup was unable to
grant access to the Microsoft CRM databases. Unknown Error (80040E14)"