On the firmware issues, I've got an odd one too.
I've flashed my board with O2D, and I'm pretty pleased with the results. Got macros working, LED settings, custom layers...
The odd thing is that pressing Left Control and then Tab will auto-release Left Control even though I'm still holding it down. This is common on OSX for switching tabs (I actually think it's the same on Windows, or similar, if not). You keep Left Control pressed and keep pressing Tab to cycle through tabs (likewise Shift+Control+Tab). However I can't do that as it autoreleases Left Control inserting just tabs after the first one. It's bizarre as it works fine with the Right Control. The odd thing is that it seems like it's just that combination (Left Ctrl + Tab), using Left Ctrl + A or Left Ctrl + E repeatedly by holding down control (for home and end) works fine.
Can anyone else try and see if they can cycle tabs with Left Ctrl + Tab?
One other odd thing, I mapped Volume Up, Volume Down and Mute. They have some odd logic going on as if I press them in rapid succession, it registers as if I'd been holding them down. It almost seems like those actions have a really long debounce or something. Odd as it's just those keys.