Blackjack II no longer charges while connected to my netbook via USB

[Guest goodguy6]

My Blackjack II no longer charges while connected to my Acer Aspire One netbook via USB.

I used to have Activesync 3, and WM6.0 installed on the phone. It worked great - the phone would charge as long as it was plugged in to the computer, whether using ICS or Activesync. When the phone crashed, I did a hard reset and upgraded to WM6.1. I also had to "upgrade" to ActiveSync 4.5. Now the phone only charges for a few seconds, then makes a cute little "beep-beep." Then the charging light blinks a few times, and goes out

So how can I get the phone to keep charging like it used to?