This is becoming more frequent so I thought I'd mention it: Once in a while, I can't log into GMail. It started on Gecko-based browsers on OSX; switching to Safari invariably worked. Then it started happening with Safari, and now it's broken on my Ubuntu machine using Seamonkey and Opera.

There are two ways it breaks:

• Eternally looping on the loading progress bar. What happens is that it keeps refreshing the loading page and never making it to the email list.
• Mostly on Opera, it just returns to the login page although the username and password are correct; it doesn't show any error messages.

I've learned to be very quick at clicking the the simple HTML view link, but even with all the practice sometimes even that doesn't work.

Anyone else seeing this?