But beyond this, I would suspect the memory stick. How much free space is on there? If running low, purge some stuff out of there, or compress your data with a file compression program, like WinZip or WinRAR. Note when Word opens a saved file, the disk space is NOT freed up - you can verify this by looking in the directory and you will see the file is still there, but now with ~$ as the first two letters. And when you save the file again, the original disk space is STILL not freed up, not until the file is saved successfully, only then is the ~$ file deleted.