WINDOWS 7 AND WINSCP VERSION 4.2.8 BUILD 818

When trying to save documents loaded on our T drive after changes have been made to the document, an error message pops up stating doc' is currently in use. Try again later. No one else is in the file/document at the time. We did find a solution to uncheck "save autorecover info" and "keep the last autosaved version.." under save options and that worked until today when the issue occured again. The boxes are still unchecked under the save options. Do you have any other suggestons on resolving the problem?
Thanks
Valerie

I'm sorry, but it seems that you are using some other software to edit the files. How is WinSCP involved?