Keyboard dock won't charge

[sbhnet]

A couple of months ago (I think) I noticed that the battery wasn't lasting as long as it used to. On top of that the red light kept flashing on the dock. I finally found and installed the dual battery widget from the Market and it appears my dock isn't charging at all. I've recently upgraded to ICS and don't see anything changing. I bought the dock last August and would have expected it to last longer. Anyone else having problems?