I am working on a G4 400 with LAM Platinum (192Mb RAM) and MOTU 2408. I have just upgraded to 4.06 and songs I was mixing with up to 24 audio tracks that played quite happily before on V4.00 are now presenting the "Overload / disc too slow" message. I am slightly confused as I was expecting to be able to do more with the upgrade not less after reading other peoples messages. Can anybody shed light on this? Do I need to freshly record and start each mix again to benefit from the 4.06 (I am lifting 24 live tracks from ADATs)? Andy PS I'm glad the upgrade has fixed that irritating flickering of the cursor on the Auto-tune page (if just to stop people saying "..why is it flickering like that?")