WHY is Adobe Audition CS6 crashing??

What can I do to stop CS6 from crashing?

I've owed CS6 on a Macbook Pro, for 1 year and purchased it from Adobe and downloaded via internet. It has been fine up until April.

I usually use it to edit audio projects and now recently for film projects.

But using it recently its had a lot of problems;

- I've only been able to use it for up to 30 mins before the rainbow of death takes control and slows everything down.

Then it eventually crashes after a long wait.

whats going on? Is there a way through this? Possibly I need to update the software? HELP!