> Has he used a 64bit program? Using only 32bit software (only half the > CPU :-) may lead to much lower power consuption. I recall him: he used software for 32bit! He tell me that my system is tested to work only on 32bit SO. If you want use Windows (not Linux) x64 XP they not assure you that it's going to work! is my system projected to work as a 32bit?????? It's absurd! Giulio