Matt, did you perchance copy it over, or create a new directory for d14? I'd go ahead and try to create a new folder and run it through there on a fresh init file.
I've found that, for some reason, my silly Intel 965 chip for my GMA doesn't want to be updated. This has caused a bunch of headache. Somehow, it wants to believe that a 2-year old driver is more up to date than the driver released three weeks ago. This made my brother cry when he realized that WoW will no longer run on my computer (not my fault, not my concern.)
So, I'm running Dwarf Fortress 40d13 currently on my Dell Inspiron 1525 (contains: Intel Duo Core 2.16 GHz processor, 4 gigs RAM, GMA with Intel 965 Express chipset, running Windows Vista Home Premium sp2), Dwarf Fortress is set on run to a). disable Aero visual effects, b). run as administrator (it will not find "index" in the directories if I do not allow this.) This usually nets max fps on embark, with a proportional drop with each wave (hitting a pop of 80 will usually cause the game to run as molasses). My existing map is a bit more intense, having a chasm and a volcano, and a lot of steep hills and cliffs, and even on embark I had around 80 fps (right now, with 28 people, I'm seeing about 50 fps, with a lot of seize ups when I tried to scroll if I didn't have it paused).
So, I upgraded to d14. I start a fresh install, copied the save files over, and restarted. Only on standard (as opposed to frame buffer, accum buffer, VBO, et al.) could I get it to run; VBO, since its addition, has caused the game to crash multiple times, and it has to fail me in that regard. Otherwise, I just end up with a blank canvas or the top bar of a window with the program title and nothing else. F11'ing it into full screen and back in lets me glimpse for just a moment what's displayed on the screen.
...
Yeah.
Seeing as my DirectX drivers are up to date, I can only imagine that I have to update the drivers for the GMA, which it seems reticent to allow.
I'd love to see this current map support a greater population, but with all those hoary marmots, fire imps, cave swallowmen, and ratmen, I doubt that's going to be a possibility. But, I'll live. Hopefully.
Again, keep up the good work--even if d14 doesn't benefit me, if it benefits the majority of other players, then you guys are you doing the right thing. (Yes, this is an attempt to see how I can get d14 to run, but I'm not going to push it.)