I followed the recipe on the Sprint Community site: Samsung Moment:USB connectivity - Samsung Moment Settings/Applications/Developement/USB debugging -Uncheck USB debugging -Status Notification will show USB icon -Bring down Notification bar and select USB connected -Select Mount from next menu and now your computer will read your device Now I get Samsung New PC Studio to recognize and see my Samsung Moment on my laptop (running XP Pro SP2). However, I still have the problem on my desktop (running XP pro SP3), when I plug the Samsung Moment in, all I get in USB is Unknown device. Using USBview I do not see any data on this Unknown device (all fields have 0x00 value). Have tried to remove and re-install the Samsung New PC Studio several times (including deleteing anything I see Samsung in the registry). The worst thing is the Samsung Moment would hang up and have to remove the battery to get it restarted. I even tried to remove the USB devices (got me scared because after removing the keyboard and mouse USB device, after I reboot the keyboard and mouse USB drivers did not get restored, luckily after poking the F8 key I managed to reboot with last known good condition!!! Phew!!). So still puzzling here to see how I can connect the Samsung Moment with my desk top.