I've got a Fiire Engine running 0710B4 and it seems to run well.
I also have one each of the 3 Fiire Stations and I'm getting an error that a device didn't start properly whenever I boot them. They continue to come up but when I go to the add software screen to add DVD CSS on the MD, it's blank. I have the bars that would normally have the name of the software to install but no text inside them and they are unresponsive when I click on them.
I haven't looked into a fix at all yet.
I'm having the same issue as well. Contacting Fiire yielded a response of "0710 is beta and not stable".
If anybody smarter than me (just about everybody) comes up with a solution I would love you long time.