On-Rev desktop client refuses to connect!

[Medard]

As for this evening (GMT+1) On-Rev desktop client refuses to connect,
with this message:

Could not connect to server. ensure your username and password are
correct.

Apparently, I didn't change anything recently...
A few days ago, I connected myself with no hassle!

Is there a recent change?

I downloaded a fresh copy, but it seems that it is exactly the same
version as the one I have on my desktop...
0.1.4 8th of June, 2009