No, my imac only has 4 usb ports and they're all used up.
I tried an m-audio m track and i get the same problem, i'm playing from a kawai k4 as the midi controller.
Seems like i'll have to use it inside Logic only, which aint really a problem, just seems strange to only effect the standalone version, thank's.
Update, I just tested sem v, that's fine, mini v is fine, Jupiter 8v has the same problem and arp2600v has the problem, there's a click and no release phase.
It's doing my head in.
Thank's for the replies though.
Update.. The problem was my Kawai k4, i swapped it and used a korg ms2000 instead and the problem has gone.
Would never have thought it would be the K4!! but then again it is nearly 30 years old.