I3 Pro W

[AntonioChiapponi]

Hi all,
After reinstall of Marlin firmware (in an year it's the 20th times) via arduino 1.0.1 now I have a strange message on LCD
Instead the sentence "I3 Pro W" as ever now I have this one "IP 192.168.78.1".
I have not ethernet nor wifi module ... anyone can explain me what's happening?
The firmware has been downloaded from this forum in firmware section as ProW without LCD touch (in the zip file there is a strange chars dir).
If the system has assigned an IP to the USB/serial port where can I change this address?
Then also with 3D printing software (every type from repetier to easy print and so on) only bed and extruder warmer works but no motion from stepper
How can I reset the board (the button on it don't works fine ... nothing happens)

Any type of help (also a very little one) is appreciated

Thank you and a big halo from Italy