Great! Finally it makes my new Philips ToU Cam Pro II work with Mac OS X 10.4 at no cost. While the standalone application version 0.8 already worked without problem, the QT component version 0.8 made my system freeze completely. Version 0.8.1b1 apparently fixes this problem. Now I can use the Philips cam with (e.g.) Keith's Astro Imager. Thanks a lot for also publishing the source code which is very valuable for studying how all this stuff works!