Lotus Notes and Kaleidoscope 1.7.1 Several readers also report that Lotus Notes version 4.5 freezes when running Kaleidoscope 1.7.1 and Mac OS 8. I believe that Greg Landweber (author of Kaleidoscope) is working on a fix for this.
Apollo and Kaleidoscope Reader Bruce M. reports a conflict between Apollo 1.22 (an application launcher/window switching utility) and Kaleidoscope. A freeze occurs "when any attempt is made to open the program although the drop down menu will continue to work." The author of Apollo confirmed this conflict.