Good news about rendering performance. I have been testing Updraft on Mac today and was wondering why is it so fast on Mac (50fps even with many opened layers) and so slow on Windows. So I tested Release configuration on Windows and surprise: It is as quick as on Mac! I opened turnpoints, airspace, couple of igcs, created a few tasks and it is still working on 50fps :) So for testing, I recommend to build Release configuration. T. To visit archive or unsubscribe, follow: //www.freelists.org/list/glideplan_swproj