I talked to Fostex in the last Fujiya DAC Festival last month. I told them that there are these very complaints on the Internet. They said to bring it back to the Fostex distributor of your country.
My swivel was fixed by Fostex after the video BTW...actually they fixed more than just that cos the swivel broke & I scratched the lacquer housing too.
So, Fostex not only fixed the rotation issue, but also repaired (or replaced) the scratched lacquer housing too? I don't mean to accuse you or anything, but just to be clear, Fostex even repaired a scratch that was caused by your mishandling, for free?
I'm asking this question because I also see a scratch on my TH900. I'm absolutely sure I'm not responsible for this scratch because it's been there since the beginning, but I can't think of a way to prove it... but if they would repair scratches that are covered under warranty, then maybe I can also get it fixed along with my swivel issue.