Unable to save in dwg or dxf format

[Stefan]

I am using Visio 2010 professional and I have a drawing which I attempted to save in dwg file format, which I was unable to perform, hence I tried to save in dxf format this operation was unsuccessful any ideas what could be wrong or what I need to adjust, the drawing is on one page and only contains one layer.
Thanks to anyone who replies   

[Paul Herber]

Is there an error message? Where do you save the file to?

[Stefan]

Hi Paul;
I am saving to the same folder as the original visio file,  selecting 'save as'> 'dwg' using the drop down menu and nothing happens, no error message. I have checked all the other save as functions and they all work except the 'dwg' and 'dxf' options. The only parameter I have changed is reducing the file in size from the original as drawn on four pages to fit only one page, I also attempted copying to a new blank single page and tried the save as >dwg function, still no joy, any ideas I would appreciate your help

[Paul Herber]

Check File -> Options -> Addins
and see if there are any disabled addins
Also at the bottom of the Addins page, Manage -> Disabled Items -> Go

[Stefan]

I have checked all the add ins and have attached a copy of the display, no addins are disabled, thanks for your help to date

[mstoops]

Hi Stefan.

I am also having the same exact issue, but I get a message box that says "Cannot save the file. please try again." No real error code or explanation whatsoever!!!

Does anyone have any insight into this?

I tried saving my drawing as a DXF and as a DWG with the same result.