One more issue with Csound 5.08 on OSX: I was running partikkelFLTK.csd: When recalling a preset (with the default preset interpolation time of 3 seconds), I get severe dropouts. When recalling a preset a lot of faders will move simultaneously, and since presets can be interpolated, the faders glide to the new position smoothly during the interpolation period. The dropouts stops as soon as the faders stop moving. It seems like there are threading issues between Csound and FLTK. Is the csound 5.08 binary installer for OSX compiled with FLTK-threads or without ? best Oeyvind