I bought EZ Drummer and installed all the disks, even ones I couldn’t afford to register. So, I went back and tried to uninstall some un-registered components to try to save CPU usage in Reaper: (I only use vintage, DKFH- the only ones I could afford to register) and tried deleting unused stuff like Nashville, Twisted, Cocktail, etc.. ANYWAY… since then I can’t “preview” grooves in Reaper before adding them into ...