I use the PSP 608 mainly in Logic as AU, unfortunately to switch on the LFO 'SYNC' button doesn't work reliable - when you click it doesn't get activated 90% of the time you try sometimes suddenly it will go on but this really makes working a little PITA if some funktions technically work fine but refuse to get activated regulary in GUI.
can you please confirm the behaviour (I allready reinstalled PSP608 also the problem persists in latest Logic 7.1.1update)