Hi InRainbows,
First, be advised that we ("Arturians") try not to provide any support on the forums, as the straight way to ask for support is this way ==>
http://www.arturia.com/evolution/kb/ and if you seek a little you will find the magic form to fill; your case is then immediately sent to us and handled through a database.
Forums are most intended for technical & inspiration sharing between users.
But hey, this the very last days of 2007, and as I'm a kind person I can give you some elements.
An option is to reinstall your Prophet-V; don't forget to backup your presets, coz the Murphy's Law applies everywhere :wink:
The latest official Prophet-V update is not VST2.4 (typically Cubase 4.x) compliant on OSX machines, BUT the 1.2beta2 IS!
==>
http://ns20209.ovh.net/forums/viewtopic.php?t=2147 is your friend.
Have a nice weekend with the Prophet-V.