More than likely, Google may have rolled out a new version of Gmail with different code, which will affect the extension's ability to operate. These rollouts are per account, and sometimes they release the new code to a small number of Gmail users first, before rolling it out to everyone, so it sounds as though your account may be one of the first affected by the change.

We've set up a status page to keep track of all the different versions of Gmail's code (and whether or not we're supporting them yet).

If you encounter issues, please check this page to find out if your Gmail version is supported, and let us know if it's not supported yet.

Please let me know if you continue to experience problems.

I have a similar problem, only the RTM app shows *only* in *one* of the mailboxes for which I am a delegate, not in my own mailbox.

It is not the new version, I checked and it is a supported version, but it is happening on both my computers.. Can some one please help with this, the app is useless if it doesnt work

If you haven't done so already, would it be possible to submit a Gmail issue report via our support system?

Please select the issue that you're experiencing from the list on the left, and follow the steps shown. If your issue isn't listed, just click on "I'd like to report a new issue" on the left.

Your report should provide all the info that we need to investigate further, but we'll be in touch via email if we require any more details.

Thanks!