coloured text meltdown

[John Oram]

oooooookay... downloaded OG beta v6, and now I am seeing the same 
trouble as Jonathan Tyzack - I can't change the colour of text 
objects at all (never mind the opacity).  Same error, and I can do 
nothing with anything on that page afterwards.  (I'm on the digest, 
so sorry about any confusion re my previous message.)

Definitely didn't have the coloured text problem in betas before v4...

-John