I know someone who picked up a computer which seemed to be in good condition from the curb but it wouldn't turn on, after looking he realized that it had a switch in the back for 110/220 and it was set to 220 instead of 110. He called the owner (a yid) to tell him, but he told him to keep it as he alreadt bought a new one!
As far as languages go you can always install a different keyboard (language, go to control panel - not a big deal and toggle in between if necessary).