Blender Export Error

I recently installed the newest version (2.76) of Blender and Exporting worked fine until today. Now I am getting this error message after every time I export in .Obj format. I tried exporting in all other formats but I just get an empty file for each time. I only get the error message for .Obj files. Any help would be appreciated. Thank you. Error Message:


Check your mesh for errors.
Remove any double vertices, select all vertices and W / Remove doubles

Can you post a link to your .blend file

Hi, may your startup .blend is corrupted.
Start Blender from a terminal with blender --factory-startup

https://www.blender.org/manual/render/workflows/command_line.html

You could move or delete your 2.76 folder to delete all setup files.

Cheers, mib