I just updated from PHP 5.1 to 5.2 and both drupal and phpMyAdmin stopped being able to save information.
I've checked the mysql user permissions - they look ok. I wrote some simple php to insert a row into a table, and it works, but if I try to do the same thing in phpMyAdmin, it just says "no change". phpMyAdmin will delete rows, select rows, but not insert or update them.
Drupal does the same thing - it will select info from the tables ok, but not insert or update (or delete).
Any ideas? I'm really starting to get desperate!