When entering a profile manually including part of the ascend, then after pressing the ascend button, part of the already entered profile is changed by the program. This is ver inconvenient when you want to use GAP for analysis of a given profile. In my opinion the manually entered part of the profile should be taken as a given and only the ascend from the last waypoint up to the surface should be calculated by GAP.
When entering a profile entirely by hand, including the ascend all the way up to the surface, the dive info palette shows zero % CNS for that dive.
I've installed GAP-Mixedgas 2.3. on a Windows XP machine, and if I try to download a dive profile form a Suunto Dive computer, GAP shuts down suddenly without giving any error message, this happens every time I try it, always the same, when hitting the Suunto icon on the toolbar and when selecting the Suunto download item from the menu.
First, search the bug list to see if someone has already reported it. If not, submit a bug report.
Thoughs on the development are found in the "Developers Thoughs" blog