Well, I found the two bugs that had been reported. One was in a Delphi library that I hadn’t updated in a while, and the update had a fix. The other was in SDL, which I had just updated, and the update contained the bug, so I patched it. Then I went to test it and found every programmer’s nightmare: a bug that only happened when the debugger was turned off!
It took me most of the rest of the day to slowly, carefully track that one down, but I finally found it in some old file-reading code I had written a few years ago. I fixed it, and now everything seems to be working properly. (I hope!) So now the download link for the installer is up again. Check it out and let me know what you think!