I have an old T-Mobile (oem) mini usb car charger from my G1 days. So, I bought a mini to micro adapter, which is from Motorola that the reviews say work well with the original Droid for car charging. It won't charge the X... I even tried turning the car on, thinking it might need a few more volts. I tested the mini to micro adapter with a usb cable from my computer & it will charge and connect. Any thoughts?