polar coordinates disabled

[mm-barabba]

Good morning to all,
Today I've got something strange, I usually draw the rectangles by pointing the mouse and typing e.g. "70,210" without the quotes.
from today any drawing rectangle ends with one of the tops at 50.50 from point 0.0.0.
Does anyone know what it might be? I tried to restart pc and autocad but nothing... that is a setting? ?
thanks to all

Mar

 

[mm-barabba]

after about 100 attempts... learn from the autocad guide

if dynamic input is disabled, type coordinates in the command line using the following format:

x,y

Inexplicably I had disabled dynamic input

 

[numero1]

probably touched f12 (autocad2009)

Hi.