Illustrator (CS6) crashes when opening in Yosemite. Any fixes out there?

I've just jumped from Snow Leopard to Yosemite. I missed out Mavericks because I was too concerned about downtime while bugs got fixed and never got round to doing it. Stupidly I took the opposite approach this time and went straight for the jugular – downloading Yosemite as soon as I could.

Unfortunately Illustrator is not working now and I need a quick fix. As soon as it opens it crashes. It asked me to update Java so I did what I was told. Still nothing.

Please, any help is gratefully received...