aftabdarogar

I connect from my RD2030 handset using a serial data cable frpm my pc and its working gr8. i recently bought a campaq presario V5000 laptop as well as n lg ez sync usb data cable for my handset whenever i try to connect thru that the laptop hangs after 2 minutes and the connection goes into dormancy is there a problem with the usb cable? or my laptop?