Looks like theres a service advisory for the D70/D2H cameras from Nikon.

From the Nikon website:

While only a limited number of D70 cameras are affected by this advisory, if (1) when a memory card is inserted, your D70's memory card access lamp blinks, locking camera operations and preventing operation, or (2) with no memory card inserted, the camera will not turn on despite the battery indicator showing a fully charged battery, Nikon Inc. will service it free of charge.

This started happening to me a few days ago and I was going crazy trying to figure out what the hell was going on. I went on the Nikonusa website and they just posted this yesterday.

http://support.nikontech.com/c...iew=1

Gotta ship it to Kentucky to get it fixed, at least Nikon will fix it 4 free.