Tried WiFi/sync tricks etc.
What helped ? Well..
1. hardware reset (Vol+ / Pwr / RotateLock)
2. factory reset (from Settings Menu)
3. full update via sd card (Vol- / Pwr)
OFFICIAL ROM: 7.014.16 - 041.213.01 - COM_GEN1 (ICS)
and once again:
4. hardware reset (Vol+ / Pwr / RotateLock)
5. factory reset (from Settings Menu)
...I know that hardware & facory reset are pretty much the same, but...It helped...