1.8b Development

I've had the 1.8 beta version of m0n0wall running for some time now without issues. It's been a wonderful router for my needs. Today it rebooted at some point and when it comes back on it sits at the BTX boot loader 1.0: v1.2 screen. That's from memory sorry, it's in my basement.

I'm certain this is something that others commonly see but I've been google'ing for some time now and it keeps pointing me to FreeBSD articles that don't seem to be related. Can someone point me in the right direction to a fix or do I just have to re-flash from scratch and start over. Is it time to open the case, pull the hard drive and flash it from my PC again?

I guess I'm just hoping for a simpler fix. Thanks.