I was running 2.3.2, and upgraded to 2.5 just a few days ago. Now my pages don't work. If you goto my site (www.xigga.com) and click the About link or DVDFab link, it will return an error.
I checked my database and the guid for the About page is:
This link is the same one that is shown in the browser when you click on it.
My permalink setup hasn't been changed. All my posts show up without any problems. I tried changing the link by editing the page in my Dashboard, but it doesn't take the change. I manually changed it in the database to something else and it still showed the old link in the browser when you view it. I changed the post_name and that changed the link, but I still got the same error.
All that is left for me to do is to dig through the code, which I haven't had time for yet. Anyone else having this problem?