SEPM 12.1 configuration has "Deafult Embedded database" grayed out
We were running SEPM 11 on a server with its embedded database (1400 users) on Windows 2003 SP2. A year ago I had to move the database to the D: drive, because it was getting too large (8 GB) for the C: drive. We have plenty of room on the D: drive.
I recently upgraded to SEPM 12.1 on the same server. While running the Configuration Wizard, I don't have the option to select the Default Embedded database, the SQL database is selected. Both options are grayed out.
It's looking like SEPM 12.1 does not see the embedded database because it is on the D: drive (though SEPM 11 worked fine after I moved the database). I do not want to use SQL 2005 due to low disk space on the C: drive, I would prefer staying with the embedded database on the D: drive.
How do I force the Configuration Wizard to use the embedded database on the D: drive? And is there a way to install SEPM on another drive besides C: drive? Thanks for your help!