I upgraded to 2.1.1 yesterday, and got hit with 2 related problems:
1. I tried to edit an existing page for the first time an hour ago. If I go to Page Management - > Edit then the url-bar shows something like:
and the screen goes completely blank. I switched to the default theme and got exactly the same result.
View works properly but if I use View, go to the page and then choose Edit this entry, I get the same blank result. Posts seem to work perfectly fine.
2. If I create a new page and save it, it does not display in Page Management. (I haven't checked if it is in the database yet.)
I have done nothing to any of the files (including my theme) since I upgraded, so its not my fault, guv :)
Does anyone have any suggestions for fixes, or any hints as to where to start looking for problems?