Pioneer display suddenly wonky

[ElectroDuende]

(01-13-2015 03:50 AM)Bill Platt Wrote:  That was interesting, I started with Katie's suggestion--and I got the happy "Memory Clear" announcement. And then for some reason I took the batteries out to see if it wasn't a lark, put them back in, and it was back to silliness again but a different pattern. So I took them out again, and shorted again (I love little swiss army knives-and the contacts are easy to short with the nail file) and it came alive. Still alive now.

How old are the batteries? I've sometimes seen strange behaviours when battery level is low in several HP (and non HP) machines.