Cakewalk (even latest 09 version) will not allow setting my MOTU unit as default in the  Sync Caching/Record Latency Adjustment (Samples) option. It always reverts to "Generic Low Latency ASIO Driver (1 in 1 out).   If I try to select my MOTU 4pre unit, when I click "Apply" it reverts to the generic low latency.   My DAW system has Realtek for the PC Audio and it too shows as an option.   Its not a Cakewalk version problem.  Old Cakewalk version and Sonar Platinum do the same