Buffalo have you access to Netatalk 2.2?
At this time only Netgear, Data Robotics, Western Digital Corporation and QNAP, has the access to this protokol.
Without this Protokoll Time Maschine don't work.
Netatalk 2.2 is not accessable on Sourcforge, maby in some Days.
The reason is, because the Developers want OEM Partners to finance the Project.
Some Manufactures have made a Deal with them.
Read this open Mail to get more Details:
http://www.netafp.com/open-letter-to-the-netatalk-community-501/I think Buffalo is waiting until the Source-Code is for free on SourceForge again.
Buffalo can begin to fix the Time Machine Problem when Sourcecode is available on SourceForge again.
There is an Update in the Open Mail that says that that soon the source is downloadable again.
I think thats the reason of the Firmwareupdate in August or September, Buffalo don't want to pay Money to the Netatalk Project, but want to make Money with Devices that are not working with Lion.
Dear Buffalo don't write Time Machine Support on your Boxes, when you are not in the position like Netgear, Data Robotics, Western Digital Corporation and QNAP.