Hi Koby,
Serene's screen capture of AC error message shows that her formerly client computer is now "set up as the main computer."
The error message also says that she needs to "make sure that SQL Server is running and available on this computer."
So AC has been installed as a server, not a client.
Serene's attachments show that AC is looking for SQL Express Server 2005, so she may be running an older version of AC without the later certification features.
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The fix is uninstall AC as a server (which failed, judging by other error messages) and reinstall it as a client.
Removing a failed install can sometimes be done by Windows, is often better done by programs like Revo, and may even require deleting files and registry entries by hand.
It sounds as if Serene's failed server install is refusing to clean up through Windows. Unfortunately, failed installs can leave files and registry entries that prevent later installation. This is why most anti-virus companies offer utilities to yank their programs out by the roots when Windows fails remove programs.
Cheers,
Carl Fogel
