Thanks again for being so responsive here!
I'm just thinking of a couple more things after doing a bunch of puzzles recently. Sorry upfront if these things seem nitpicky!
First, under preferences - startup, could you add one more radio-button for "do nothing"? That, or have the app recognize that it's been opened (or brought forward) by me double-clicking on a puzzle file? It's a little odd that it still shows the Open dialog, even if I've just clicked on a .puz file in the Finder to launch it.
Then, under the category of resizing options, is it possible to have it remember a preference to have the puzzle always open at the size the last one was opened to? I know that might be a problem for puzzles that are very different in size, but I have a nice big 20" monitor, and the puzzles are always opening fairly small. I know I can just click the green button or select zoom from the window menu, but it would be excellent if it could somehow remember the preferred size, possibly based on grid size?
Anyway, thanks again for your great work; keep it up!