you can tell a cpu from an eprom because, well the cpu looks somewhat like a sim card on a movile phone in as much as it has a corner cut off just like the afforementioned sim card. an eprom or eeprom has a window right in the hi diddle diddle of the chip where you can use a prom burner to encode the thing. hth. -- Shaun Oliver "I refuse to have a battle of wits with an unarmed person." email: shaun_oliver at optusnet.com.au WEB: http://blindman.homelinux.org/~blindman/ IRC: irc.awesomechat.net:6666 IRCNICK: blindman -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks transtec Computers for their support.