I'd be most grateful if anyone could answer my questions. 1. Capture NX came with my D300, in a package marked "NSA" and "Not for Sale". I have not used it but it may help with a specific problem (noted below). However, can anyone tell me if this is indeed free or whether it's a trial version and I will be prompted to buy it after a certain period. The package says nothing about it being a trial version but I have read on the web about this not being free software. 2. My real question is, can Capture NX accurately correct barrel or "mustache" distortion produced by various Nikon lenses? I vaguely remember reading something about this but now I cannot find any references. If so, does it only work for NEF files or will it also correct lens distortions in JPG as well? Thanks in advance for any help.