To collect a number of small fixes over the last month, I've put together a fourth Beta test release as follows, for those interested: <http://www.argyllcms.com/argyll_dev_src.zip> <http://www.argyllcms.com/argyllV0.70Beta4_win32_exe.zip> <http://www.argyllcms.com/argyllV0.70Beta4_osx10.3_bin.zip> <http://www.argyllcms.com/argyllV0.70Beta4_linux_x86_bin.zip> Notable changes from Beta 3 are: icclib now allows reading and writing of unknown tag types. Added a 50msec delay between updating a display test patch and triggering an instrument read. Fixed issues with OS X locating displays. Added profile comment options to link/icclink. Made black generation consistent between profile and icclink. Added "patch by patch" mode to printread for spot/strip instruments. Added patch consistency tolerance modifier to printread for the Eye-One Pro. Graeme Gill.