[PROBLEM] No log-in anymore

[syco]

Sorry, guys, I have a problem again. I am on Xbian RC2
and tried to update to RC3 last week with the normal

apt-get clean; apt-get update; apt-get upgrade

but it stayed on RC2, which is not the problem right now
and it is still working for now.

So, if I tried to log-in yesterday, it just does not do it
anymore/allow it. It hangs/circles on the first black screen
(see screenshot) for ages, but nothing happens.

But Xbian/XBMC is still running, it seems. At least, I can
still watch movies and so on.

---

Nevermind ... I did like five restarts and now logging in worked.

I hope, nothing is broken somehow.

---

Well, shit, sorry, the problem still persists.

It seems after a restart (pulling the plug)
it restarts fine with working network, but
after 2 or 3 minutes it just loses network
capabilities and now I have no single clue
how that is happening. I realised it, when
it stopped during an update search and
the remote app (Yatse) also stopped working.

---

Okay, it might not only be the network capabilites,
but Xbian/XBMC completely. The hardwore remote
also does not work after those 2/3 minutes. It seems,
it froze or something alike.