I have just updated my driver to 3.062 from 3.034.  However,  I now have crackling on playback where I did not before! This happens in a fairly small project - 10 tracks,  East West Gold Orchestra and Omnisphere,  playing back the MIDI.    Buffer setting remains as before at 256.

Should I (can I) revert back?  Any issues known?

PC Core 2 Duo  8Gb RAM  Windows 7 64bit  Fireface 800