I provided this information in an earlier posting, but will re-post for anyone new to the string. Since I started this discussion months ago, there have been many people post that they are seeing the same issue. I am assuming they are on a variety of MAC
platforms and/or OS X versions judging by the volume of postings.
I am currently using OS X ver 10.9.2 (Mavericks), on a Macbook Pro with Retina. During the past year I have migrated from ver 10.7, to ver 10.8, to ver 10.9. The problem has been present at all versions of the operating system and does not seem to have
a correlation to the OS X version level. I am using the US English setup and keyboard on my Macbook Pro.
I started with a MS Office Home/Student version of the product. I upgraded that to the Professional version just incase there was an issue with the cheaper version. The same problem and symptom was present at both versions. I have uninstalled and reinstalled
MS Office multiple times, and I have done so before and after doing Operating System upgrades too - none of that had an effects on resolving the problem. I have done a OS X system restore (without preferences), I have done a bare metal OS X restore at an
Apple Store and then loaded all my applications independently back onto my machine (I wanted to make sure it wasn't MS Office or another application causing the issues). I have spent many hours on the phone with MS second and third level support doing a remote
into my machine and uninstalling and reinstalling the MS Office application and configuring the OS X and preferences. None of this has worked to fix the problem.
It is definitely a bug in the MS Office for MAC version of the product.