sql server driver mismatch

Seeing this message when running GSH in my v2.1.1 installation:

Grouper error: detected mismatch in hibernate.connection.driver_class (net.sourceforge.jtds.jdbc.Driver) and hibernate.dialect (org.hibernate.dialect.SQLServerDialect) in grouper.hibernate.properties

Using jtds-1.2.4

hibernate.dialect = org.hibernate.dialect.SQLServerDialect
hibernate.cache.provider_class = org.hibernate.cache.EhCacheProvider
hibernate.cache.use_query_cache = true
hibernate.connection.driver_class = net.sourceforge.jtds.jdbc.Driver

How to fix this problem?

Thanks,

Lawrence Klug