Installing Insight Manager 5.2

[MHeaton]

I have a SBS 2003 server and Vista workstation. I am trying to install Insight Manager entirely onto the workstation where I login with a domain account to test it out.

It is completely hit and miss whether I can get past the DB sign-on screen on the installer. Sometimes it works and sometimes not.

Here are some of the things I have tried:
I have removed UAC - which I don't like;
my domain account successfully connects to the SQL Server DB;

I run setup as an administrator.

Can anyone list out the precise set of configuration changes required to get this to work?

Thanks
Mark