Autodesk Revit Architecture

[#1]

I am running Revit Architecture 2013 on Windows 7 64 bit and I am having issues with the error message "Failed to Open Document" followed by "File Not Saved" This happens not everytime I save but quite often.  And once these error messages come up and I cancel them and try saving again the second time it will save.  Any ideas on why this is happening?? Any suggestions on how to fix this issue??

oh ya and I am saving to a shared network not the harddrive on my computer. 

[#2]

Hi Kate..........are you working on/in a Workshared Model?...........if so, usually that means someone else is accessing the Central file at the same time.

Mike

[#3]

No I am not using work sharing.  I am the only person working on the drawing.  I work for a small company that does small scale projects and only needs 1 person to work on a project at a time.