After reading the positive reviews here I got myself an MX Revolution mouse. It was partially charged when I bought it (showing the green battery LED plus 1 bar). Today it was down to just the battery LED, so I'm trying to charge it, but the charger seems to be draining power from the mouse instead of charging it (after a few hours on the charger, when I go to use the mouse the battery LED is red, and the LCC program shows that there's only 5% power left). When the mouse is on the charger, I the battery LED flashes rapidly for a couple of seconds, then it changes to green, sometimes with a bar or 2, and the rest of the bars then light up. It then goes back to the flashing red LED for a few seconds and repeats the process. To other folks who have this mouse, what do the LEDs do when it's charging? Should the mouse be turned off while charging? Does it matter if the mouse is still within range of the USB dongle with my iMac sleeping? Sorry if these seem like silly questions, but the "manual" that came with the mouse is rather lacking in detail.