Same thing's happening to me, but to add some info:
It's version 2.31 I'm using, freshly installed using Fantastico on Bluehost hosting.
I'm wondering if the other posts here used an automatic insstall from Fantastico or not.
Also, I TRIED to upgrade manually to WordPress to 2.32 by downloading the zip and replacing files, and I discovered in the previous version 2.31, the "/wp-includes" directory was EMPTY. A bad installation, I think. FYI, However, after uploading the files that were supposed to be ther (overwriting with 2.32 version), it's still not working. I've never manually upgraded WordPress before, so I may not have done it correctly (?)
Hope that helps someone figure out what's going on. I uninstalled/freshly installed 2.31 multiple times and the same Stack Overflow message comes up every time. Very frustrating.
NOTE: What happens is if you try to create a page or post, only the title is saved, the content is blank.