GMail issues

GMail has been giving me this error for a couple of weeks now:

Oops... the system was unable to perform your operation (error code 717).
Please try again in a few seconds.

I have no idea how many people this is affecting, but I am not the only one.

The problem occurs after I log in, when I try to open an email. Usually the problem really does last only a few seconds, but this is no consolation because it happens all the time.

Guess 'Beta' is the excuse?