Battery monitor problem with e310

[tanalasta]

I charged my toshiba overnight (with the device off) as per normal and woke up with batterypack 2004 telling me that the battery's been charged to 117%. Clicking on the microsoft's battery monitor, it says 100% and has been that way now for the last half hour or so. And batterypack no longer tells me how much battery is left - only a blank. Actually... batterypack now thinks the battery is charging but it obviously isn't.

Any idea what's wrong?