The indicator on the upper right hand corner of my screen that tells me how much battery life I have left in my computer is sort of messed up. Normally it will tell me how much percentage of the battery I have left and approximately how much time I have left. However, although the percentage reads correctly, the the indicator for how much time I have left, instead of something like "3:09" it reads "-1:0-1". Is anybody else having this problem, and if so do you know how to fix it?-Thanks