I have no idea of the reason, but I am finding it impossible to update posts and pages in WordPress at the moment. I can access the dashboard and edit posts just fine, but when I hit the Update button it doesn't work at all - no error message or anything, it just takes forever to load the next page. It's like this in both Opera and Firefox.
What's confusing is that a friend has been able to edit and update pages on the same installantion of WP with no issues at all, so I really can't figure it out, aside from guessing that it must be something I'm doing wrong at my end of things.
I've tried resetting my internet connection, logging out of WP and logging in again, rebooting my machine, clearing the cache, making sure my browser is up-to-date. No joy - I've got several sites that run on WordPress, and am experiencing the same issue on all of them. I'm really at my wit's end here, so any suggestions as to what might be causing this would be gladly received.