I eventually got it working on Mac P7 SR2 by changing a line of code in vssui.py. I'll see if I can find it again.

I can't say it's a definitive fix for whatever problem he has, but it's worth a try.

Edit:

Found it, I think. The first line below is the commented-out original, the second line is my replacement. It's just before half way through the script, in "class Wacros(object)". I struggled for ages to get to the bottom of this issue and just got it working when SR3 made my fix redundant.

#call = os.path.join(vssFolder, self.pyfileFmt % (i+1))
call = os.path.join(vssFolder, self.pyfileFmt % (i+1)).replace("/",":")

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)