A family of Microsoft word processing software products for creating web, email, and print documents.
Thank you Suzanne for this information.
I suppose that there is no specific information regarding Word/Office 2010 on this subject.
My conclusion is that Microsoft probably claims that new versions are supposed to have less bugs. Wishful thinking!
On the opposite, the same old bugs will always reappear (over many years) in the heritage of each new upgrade version, regardless what program,! Your text ("regardless version") confirms my opinion.
I have been Googling too ! ... This frequent error does NOT appear because the users changed some settings (why should they?) , but is definetly caused by Microsoft software. It can occur not only after installations but also at random, at any time and using any Microsoft Office related program.