White Screen After Upgrade
If you run into the white screen of death when trying to log into wp-admin, try renaming your theme, then log in. Once you’re able to log in and update the database, rename the theme back to its original name.
The other thing you can try is uploading a fresh copy of WordPress onto your server. I know, I know, you just updated, why would you do that? Well, some servers are finicky, and some FTP clients don’t always play nice. In one instance today I fixed a white screen by simply re-uploading the /wp-admin directory. Done and done.
These tips worked well on a few troubled sites I encountered today. Hopefully you don’t see any issues, and are enjoying all the new goodness in 3.1.
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