We are using a Buffalo Terastation III
Model #: TS-X2.0TX/R5
Firmware version 1.41
When one of my users (Running Windows 7 and Office 2007) opens PowerPoint and sometimes Excel files that are stored on our Buffalo Terastation III, she sometimes receives the aforementioned error. If she clicks "ok" and tries again it usually works on the 2nd or third time, but she is receiving the error several times daily.
As per the previous topic, I have run Office Repair to no avail. Per Buffalo's recommendation, we updated from firmware version 1.1 to 1.41 and are still seeing this problem just as frequently.
To my knowledge, her Office software is completely up to date. I need to check myself to make sure I'm not being fed a line but I can update once I find out for myself.