My apologies if this has already been discussed-did a search and couldn't find it. I'm having problems with NC4. Specifically, I'm getting a "Program encountered an error and must be shut down" message when I try to tweak White Balance on a batch of images. I even got it a few times when applying the adjustment to just one image. Here are the details.....D2X NEF files, running NC4 on Windows XP. Opened 100 NEFs that had a slight color cast due to mixed lighting, selected the first image, did a white balance adjustment (using "set gray point"), matched the new settings to all the images. There was no problem so far. It isn't until I tried to save the changes that I'm getting the error. I would just use ACR for the conversion but I really prefer the WB function in NC4. If anyone else has had, and resolved, this problem, or if you just have a good idea what's going on, I'd appreciate the help. I may just end up calling Nikon support but thought I'd check here first.