Sigma has made the new version of Sigma Photo Pro available for download. Version 4 supports the newer DP1x and DP2s as well as the SD15, and introduces improvements in performance particularly on dual-core systems.

SPP 4 is for Macintosh and Windows systems. You will need to uninstall your previous version.

Download from the DP2 site here: http://www.sigma-dp.com/DP2/photopro.html

In addition, Sigma has released Firmware version 1.04 for the DP2 camera. This improves the AF speed of the DP2. Remember to fully charge your battery before updating.

As always, the latest DP2 firmware is here:

http://www.sigma-dp.com/DP2/firmware.html