Can't save my work (PSD) - I keep getting a message: "could not save (file name) because the file is in use or left open". I made sure no other program is using the file, restarted PS, the computer (MacBook Pro) but the problem persist. I have to save periodically using Save As and use a new name each time. Big waste of time for me as I have to then delete the older file (the sizes are big and the hard drive gets filled with new unnecessary versions of the same file if I don't get rig of them promptly). This was happening sometimes before but not always - never found a pattern or why. Now It won't go away and I have a contract to work on... I am using an older PS version - CS4 Extended and don't have any other problems with it. Any ideas what is wrong?..
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