Hi, after changing some firewire cables on my computer (GByte x48dq6, Q9550, 8Gb ram) my Fireface 400 is not recognised anymore (the host led is red lighted). The cables and the firewire cards are all ok. Tried uninstalling the drivers, with or without ac power, in win xp sp3 or W7-x64... nothing! Is there a way to "hard reset" it or something? The interface doesn't work on several computers, never had a problem in 3 years, absolutely rock solid. And to send it in Germany for repairs would be a nightmare (. Any help would be greatly appreciated!