That's all very easy to say but I started again got down to Telos again, and the same thing has happened.
You've misunderstood, I used the cheat as a last resort, its not what caused it to crash.
I can't reload the save game because its a bug in the game that when you land on Telos it loses the GUI. What I need is a save game just after that level which causes the game to crash.
I appreciate your responses but I've tried everything you've suggested. I wish I hadn't waste my money on a game this buggy.