'Hardware' menu disappearing

The ‘Hardware’ menu item that brings up the MR816 control window (to change headphone/monitor volumes etc.) keeps disappearing. One moment it’s there and the next it’s gone from the Cubase menus. Is there something I’m doing wrong or is this some kind of bug. I have this issue in Cubase 7 and I also had it in C5.

Any ideas?

Bit of a coincidence this but I’ve never noticed this before and then today - guess what? Yep, exactly as you described the hardware menu disappeared. After a bit of tracing, it looks like the FW driver got a bit corrupted. I switched off the MR816 and then switched it back on. The driver reloaded and everything was fine again.