hi, i forget my original charger at home so i got a new one from at&t (didn't find t-mobile), generic one, with the same connector and the guy from the store said it will work fine with captivate (that should be the same as the Vibrant). when i tried to use it, it charged my phone but the whole interface was laggy and didn't get half of my touch pressing (the other half did something else like pressing the wrong spot). anyway i thought its a bad charger so i get a new one from RadioShack... that do the SAME problem. then i tried some electric shop that told me theres a difference between this chargers and i need to get the Palm Pre charger and not Motorola/BlackBerry, but still both of them did the same problem (again, all of this stores got only third-party "generic" chargers and not originals). anyway i got home and charged with the original usb wall adapter and usb cable that came in the box. so, WHAT THE HELL was that?!?! why can't i charge with a regular charger? thanks.