Toshiba, HP, Compaq, Sony are crap laptops with terrible chip sets. Their USB and comm ports suck. Remember all the problems you were having trying to get my software to run without locking up? Other people don't have near the problems you have and I never have a problem with it. My point again is that the problem is with the computers and this type of stuff. Does NIssan or other companies use laptops to communicate to vehicles? No, they use dedicated devices with embedded firmware who's error handling is also much better.