We upgraded from 7.5 SP1 HF3 to 7.7.1 HF1. With this came an upgrade of our DB from 2005 to SQL 2012. Its Compatibility Level is currently set to SQL Server 2012(110).
Hope that helps,guess the question would be, what version of LDSD you are running?
That sounds good for me.
My client runs on 7.7.2.