Ok aterm is now working perfectly...
...but not conky.
So I changed "use_spacer left", installed lm_sensors. By the way I only have one CPU, and here is sensors output:
Adapter: Virtual device
temp1: +62.0°C (crit = +99.0°C)
Can you please tell me what to change in my conky config file (I've tried changing many things but none of them worked)?