Brent,
Sorry for the late reply. I have just now tested Word (docx) and Powerpoint (pptx) files. I also installed the patch released yesterday, but that did not make any difference. As far as I can see, any docx/pptx documet that is extended through RBS, is impossible to open through Sharepoint. However, it can be downloaded locally, and then opened, but that is obviously no solution.
Trying to find out some more about this, I have located the extended file ({guid}.dat) and copied it to my computer, then renamed it to docx/pptx. This file is not possible to open either, or at least it needs repair. As you may know, docx/pptx are actually compressed (ZIP) files. Trying to unzip these locally copied files gives an error. I hope somebody at Netapp can investigate this further.
Regards,
Inge