Well it is acting the same with both batteries, so my guess is something inside the machine. I will try to flash it and see if that helps and will probably leave most apps off...though I'm not usually one to install anything too weird. Really weird. The one battery I bought is an off brand...it's just really strange, because I don't even carry
the N800 around with me much outside the house.

Will let you know how it goes...will check back here later.