Sorry folks, I had planned to have 1.8.1 out by now but I'm away from home and I discovered a new bug in the GUI session save/open for (some) ARMA models. That's fixed in CVS but the difficulty is that I can't directly make an updated OS X disk image, since the Mac I use for this purpose is behind a firewall an ocean away. I will have to write and send a script to do the update. Allin.