...after a clean reinstall.
Since I have no common sense and can't leave well enough alone, I decided to clean up my HTC folder by doing a clean reinstall. I moved the skins, settings and sound files to the desktop, removed the HTC directory, and reinstalled from the website.
After that, I moved those folders back into the AH2 directory and regenerated cache.
I'd planned to go offline and choose the skins to keep, but I've found that every time I try to take off in any A20 skin the game crashed to desktop with a white screen.
I've used different runway directions, and I've launched a 109E without problems....but I'm posting here before testing others.
Any thoughts about what went wrong, and how to fix it?