You have all my sympathy - my MBP is now incapable of burning a DVD from i-movie. It has been to the i-Studio 7 times, been re-installed and updated.
I have lost several kilos, I am chain smoking, not eating or sleeping properly and have spent the past week waiting for 14 hours at a time for my first business project movie to pop out but after all that waiting it says 'The application IDVD quit unexpectedly' It doesn't say - 'sorry I am not capable of doing my job' or 'sorry you wasted all that money a year and a half ago' or 'you should have listened to your PC friends' - it just quits after a 14 hour wait, wothout saving the menu's and extras and everything I have done so many times now I can't remember - about 30 minutes each time.
I don't know how many dollars a thousand UK pounds is but that is how much I have now lost thanks to Apple - My customers 'premier' has been cancelled 4 times now, they are not happy - my credibility is damaged and I will have to borrow more monry to survive.
I hate Apple, and both managers of the Apple stores here in Bangkok who know me well, sympathise with me and understand that hate and admit that I have been very unlucky indeed.