In reply to Sharp:
> I take it that that is after you have restarted the system? If it says it's open then it most likely is, could be explorer, bridge, one of adobe's background processes maybe. Have you gone through all your open processes and killed them individually to see if you can find what has it open?
If I restart the computer the problem doesn't arise. It is (as i just said to Gordon) when I want to make minor changes to a file. So say I send off the final image and the clients asks for a minor change. I can go back to the original PSD image and edit but then if I want to save it as a jpeg I can't save it as a straight jpeg if I have already opened and then closed the previous jpeg. I have to either give it a different file name or go into the documents folder and drag the previous jpeg file to trash. It will not simply overwrite it.