Meldas M0 memory clear procedure?

I have a Long Chang LC-16CV with a Mitsubishi Meldas M0 control on it that I'm trying to get running. It had a dead memory backup battery, so I've replaced that, cleared the RAM, reloaded all the parameters, and now it runs and drives, so to speak - It will follow commands typed into the MDI just fine, but I am unable to save them to memory. When I try, I get a "Memory Over" message, which is weird, considering the whole thing has been sitting with a dead battery and is totally empty. I've seen mention of a "memory clear" procedure that's different from the ram clear that I've already done (hold K at startup), but I haven't been able to find any info on how to actually do it.

Thanks, any help would be greatly appreciated.

I found it!
You have to go to the I/O menu, go to page 5, and type (1) (INIT) then press [input]. This will format addresses 1 through 7999.
Then type (2) (INIT) and press [input]. This will clear 8000 through 8999.
(3) (INIT) clears 9000 through 9999.
(4) (INIT) does the canned cycles.
Power off the control, restart it, and you should be good to go.