Thank you Mrs Flyn. As far as I'm aware I haven't got any screen capture program. I also have been trying the cheats in live mode and also in sims 3. its so frustrating. I have also tried to repair game with no joy. I must be missing something really simple lol.
Edit I have also tried a clean boot with no joy
2nd Edit Well I have spent all day doing some digging for a solution and I think I have found it.
For anyone else that may have this problem you need to
Press ctrl on the left side along with shift on the right side then c.
Hope that makes sense .it may take a couple of attempts for the box to stay up but it did eventually.
Thank you all for helping me. Now going to see if it works in sims 3