I don't have "mu", only "u" and changing it to "h" only gives me the old html interface. I can do the same in the settings.
I had the option to switch back to "classic" a couple of days back, but now it's gone.
I had the option to switch back to "classic" a couple of days back, but now it's gone.
Make sure you are logged in before clicking on the link above. Let me know if I can still help.
No. There's are 3 interfaces: html, previous UI and new UI forced on users now. New UI apparently contains some features from Inbox product, and is much slower. You could opt out to use the old UI (dubbed Classic by Gmail) until yesterday. Now I can only choose between new UI and html.