Just turn on coherency either through gui or command line arguements. There's an actual option for it. Also, make sure you have the janus daemons running from amiga os.
One thing I mention is that if youre expecting it to work well on an old machine you'll be disappointed. Coherency is really in the realm of core2@3ghz and above type specs (or above 5ghz p4/4ghz athlon 64(per core)). Intergration works nicely with less, but forget coherncy if your pc is more than 2 or 3 years old and/or a low power device.
