Saving In Microsoft Works 6 SS

Hi,
Whenever I try to save a spread sheet in Works 6, after the initial save and after adding to the ss and then trying to save again I get the following message:
"Microsoft Works
Insert the disk containing the document A:\Document.xlr.
The floppy disk is not in the drive, the drive door is open, or the disk is write protected.
Correct the problem and try again. "
I can save the added info by clicking "save as" and then saving the document again.
I cannot just click save after adding additional info to the document. I just keep getting the above message everytime.
Does anyone have a solution to this problem?
Thanks

 

If the file will fit on a floppy, it might be worthwhile to save it once to the floppy. Windows can get persistent and persnickety when a process is interrupted for whatever reason. A save to the floppy might just get this off of its tiny mind.