Thank you so much for pointing this out, whoisgregg. I'll admit it makes me grit my teeth a tiny bit to see reports that "AdWords is down", when it is actually running as normal apart from a login issue.
This is not to undervalue in any way the pain that you all feel when there are login issues - and for that pain and frustration you have my apology.
I am also sorry that I wasn't around to report on progress in getting things resolved. I haven't been able to read or post on WebmasterWorld for the better part of two days, and this may continue for a while. Technical issues (and no, not related in any way with the login problem!) are beind my absence.