I'm using a D1h with the latest firmware, and one of my batteries is acting up. It indicates half full, and the shutter won't release. Upon depressing the shutter release button, the battery indicator flashes. I have refreshed the battery twice, but it still won't allow shutter release. It is now on the charger for a third refresh (two consecutive charge/discharge cycles). The other battery from that batch (they are Lenmars version of the NiMh EN-4) bought the same time works fine. There was one time I removed the battery during image deletion because the camera had pretty much slowed to a stop...but I'm not sure which battery it was, or how having done that might kill the battery. Any advice or anyone who has experienced a similar flashing half-battery indicator on a D1-series body? Thanks.