Switching Back To The Classic Blogger GUI, And "400 Bad Request"

Those Blogger blog owners who continue to use an older browser, and who have decided to check out the New Blogger GUI (2011), may be familiar with the ominous advice

Your browser is no longer supported by Blogger. Some parts of Blogger will not work and you may experience problems.

If you are having problems, try Google Chrome.

Some of you have opted to check out the New GUI, even when faced with the warning - and have been faced with a cold reality.

I mistakenly clicked on the "Try the updated Blogger interface" link and now I just have a blank screen because my computer is outdated.

Having seen a steady flood of the latter complaint, in Blogger Help Forum: Something Is Broken, Blogger recently released a non GUI Recovery process.

www.blogger.com/opt-in-new-ui.g?useNewUi=false

The latter URL, and its mirror image

www.blogger.com/opt-in-new-ui.g?useNewUi=true

can be used by anybody, as a non GUI procedure to move back and forth between the Classic and New Blogger GUIs. Unfortunately, not everybody can do this.