Radio Shack said they hadn't heard of it, but I just bought a Compaq V2000 and the charger the guy gave me was for "HP ProBook 4320s, ProBook 4321s, ProBook 4320t Series". He had a little adapter guy on the end of this charger to make the prong thing fit in just fine but he can't find it now. Any idea what that would be called and where I might be able to find one?