So basically, I've read here:
aircrack-ng.org/doku.php?id=simple_wep_crack
on the step 2:
Code:
"The last line is important. Ideally it should say 100% 
or a very high percentage. If it is low then you are too far away 
from the AP or too close. If it is zero then injection is not working 
and you need to patch your drivers or use different drivers. "
Right... I'm getting 0%. How am I supposed to fix this? Witch drivers am I supposed to get?