i have no com port on my laptop and i am trying to use a usb to rs232 adatper to cnnect my kryptview a750 to my laptop but this is driving me insane. When ever i connect the usb to rs232 lead to my laptop it fails to install the drivers for it. I have tried searchin google. Used every prolific drivers for it & had no luck. I am running on windows 7 64bit os. Any help would be appreciated & any advice on wat proper lead i could buy that works on windows 7 64bit build 7600.