I am having intermitent problems saving and publishing posts. When I try to publish, a login screen appears. When I put in my username and password, the screen reappears. I have found that I can copy the post from the edit screen, delete the draft, paste the text back in and then get one chance to publish before the whole cycle begins again.
I thought an upgrade might help so I tried to backup my database as a first step in this process. This works for all tables except wp_options which freezes then crashes my sql client.
I am able to export my content to an XML file. If I install the latest version and import this XML file, what problems am I likely to encounter? Are my old posts at risk?
Thanks for any advice on this problem.