It didn't work through Tor the first time I tried it, but a 2nd attempt got me into my account.
Well woop-de-doo, I got in this morning after trying 5 times.
I think the problem is that I suck at solving the captcha, so next time I log in I should watch the google auth timer to make sure the code stays valid during the login ( and thus avoid a failed login which would require another round of captcha solving... )
thanks anyway for the responses