When I run the installation wizard, I select my instance from the list, and everything looks fine. Then the SQL server setup "UpgradeAdvisor" gives me an error of -1. Then it just stops, and I am not able to upgrade the named instance. There default instance is SQL 2005, however I had to install this named instance for a legacy app. Now we want to upgrade to 2005 and we are having issues. Any ideas?